Entry sensor not responding simplisafe

The entry sensor on the back door of an unheated garage is reporting low battery intermittently, particularly at night. My voltage meter reports 3.07 volts for its CR2032 battery. ... SimpliSafe documentation says entry sensor batteries should last up to 10 years, and motion detector batteries should last 3-5 years. https://support.simplisafe ...

Entry sensor not responding simplisafe. The Base Station should announce “Freeze Sensor” and the timeline should show “Freeze Sensor Test” on the SimpliSafe Mobile App. If you do not hear the Base Station respond, the battery within the Temperature Sensor may need to be replaced. The Temperature Sensor takes a single CR-2032 Lithium 3V battery.

Hi @jtkriese,. That message means that your Entry Sensor is failing to check in with the Base Station, which could be due to several possible reasons. Since you do see the Entry Sensor restoring every time (meaning that eventually the sensor is able to check in again), it's unlikely for it to be a battery issue.

It was not at all obvious what could have triggered the gen-1 sensor until we found the remains of a recent demised bird (about robin-sized) under a cabinet. The alarm occurred around 0445, so the heater's been off, the house is @ ca. 50° F, so I'm guessing if the poor bugger was flying near the sensor, there'd be a clear thermal delta in motion.Nov 21, 2023 · I think you may be missing the issue. If the system is turned off, the entry sensors do work properly and announce when a door is opened, so it appears that the sensors are working properly. However, when I set the system to "Home", and open a door, the chime no longer rings, nor does the system announce which door has been opened. Yesterday I received an alert on my phone (via the SimpliSafe app) at 2:52 PM: "Device Not Responding Hallway Motion Sensor" Having already had the issue once before with my home office's Motion Sensor, I took out the battery in the problem sensor, reinstalled it, and that action restored the device. Now here comes the weird part.I have discovered that the message claiming a loss of signal from entry sensors in my Simplisafe system is a false positive. If the problem door or window in question is opened when the alarm is set, the alarm is always activated, regardless of the connection status of the sensor with the base station.SimpliSafe Not Responding . I purchased 4 entry sensors but I only have use for 3. They're all set up and working. The 4th one is just there. Whenever I arm the alarm it says "warning… entry sensor not responding." I'm pretty sure it's referring to the fourth sensor.Chevrolet’s 4.3-liter Vortec V-6 engines incorporated one or two knock sensors. These sensors detected incorrect fuel-air mixture combustion in the cylinder. The knock sensor relay...I've had my simplisafe system for almost a year now and before about two weeks ago, the base station and my siren would chime anytime a sensor was triggered, as well as send me an alert on my phone. The system no longer chimes when a door or window is opened. I've tried everything, adjusted settings, called SS and have the latest updates.Entry sensor battery. Anyone have an entry sensor battery die with no notice. I thought everything with a battery was supposed to notify it was getting low. Yea this is my first. The app just said it wasn't responding. I opened it and no blue light, switched the battery and had to remove and readd it.

Entry sensors constantly “not responding” or “open”. We have a small 2 bedroom house, all rooms on the first floor. At least 3x a week we get a notification that an entry sensor is either open, or not responding. Resetting the entry sensor usually works temporarily but then it starts up again, usually a different one.Wildflower Schools has a radical idea: use sensors to track kids' every movement—where they go, who they interact with, and how long they engage with materials. Schools spend billi...2. Remove the backing from your sensor's adhesive strip. Line it up on your door or windowframe, making sure the notches are facing in the direction where you want to place the magnet. Affix your sensor by pressing firmly. 3. Remove your sensor from the backplate by sliding it in the direction of the blue arrow. 4.Sep 9, 2564 BE ... HOW TO CHANGE THE BATTERY ON A SIMPLI SAFE ENTRY SENSOR ... SIMPLISAFE ENTRY SENSOR NOT RESPONDING FIXED HOW TO FIX SIMPLISAFE SENSOR NOT ...SimpliSafe sensors rely on batteries for power, and when the battery levels are low, the sensor may fail to communicate with the base station effectively. To address this issue: Replace the batteries in the non-responsive sensor with fresh ones. Regularly check the battery levels of all SimpliSafe sensors to prevent future issues. 3.I have discovered that the message claiming a loss of signal from entry sensors in my Simplisafe system is a false positive. If the problem door or window in question is opened when the alarm is set, the alarm is always activated, regardless of the connection status of the sensor with the base station.

Unplug your base station. Remove the battery cover at the bottom of the device using a screwdriver. Remove the battery for 10 to 15 seconds before putting the battery back in. Put the cover back on the device. Plug the device back in and wait for 1 to 2 minutes for a new connection. Arm your system to test that is working.How do I disable notifications for "Entry Sensor xxx is not responding"? I have a few sensors in a detached garage, and every few days (usually in the middle of the night) I will get that message, followed some time later by a notification "Sensor restored: Your Entry Sensor xxx at yyyy is now responding normally".Your SimpliSafe Entry can notify you about the sensor not responding to signals in case the Base Station is failed to check the censors for more than 24 hours. What you may do is, just Reset the Base Station and wait until the Entry sensors are. fixed and connected properly. Most probably it is gonna take about 45 minutes.Per the, "Why is my Original SimpliSafe Entry Sensor shown as open?" support article there are two likely causes: Your Entry Sensor is too far away from its corresponding magnet piece. Your Entry Sensor (or its corresponding magnet) is placed on a metallic surface, and the magnet is consequently not working correctly with the Entry Sensor itself.Open the SimpliSafe mobile app. Navigate to System > Sensors. Select your motion sensor from the list. Tap “Check-in” next to the sensor entry. Trigger motion in front of the sensor within 30 seconds. Walk across its field of view or wave your hand. The app will confirm if motion was detected or not.

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Definitely a great idea there. We should probably warn that our recommended operating temps for the Entry Sensor is between 32¬∞F and 120¬∞F, with 90% humidity (and of course, it's not at all waterproof!). Not, that the sensor will stop working immediately as soon as the environment goes beyond that range.as an amazon affiliate, i get commissions from purchases made from links in the description of my videos. please help support my channel by using my link to ...Wait 24 hours to see if it works okay in both locations, first location, 2nd etc. If they both work fine that it probably is a signal connection issue. If the orignal sensor has issues in the new location, and the 2nd one works okay, then that points to a defective sensor and call SS to replace it (if still under warranty.One entry sensor appears to be working alarm wise, but it never would sound the alert when the door opened. The other gave the alert for over a year then all of a sudden quit. It appears to be functioning properly alarm wise.. Both tell me when they are open on the keypad. I have installed two new entry sensors, but they still do not sound the ...Water Sensor Offline. If your Water Sensor is showing as offline on the SimpliSafe® Mobile App, this is an indicator that the battery within the device needs to be replaced. The Water Sensor takes a single (1) CR-2032 Lithium 3V battery and has a life expectancy of up to 5 years depending on placement and usage.To replacThe Base Station should announce “Motion Sensor” and the timeline should show “Motion Sensor Test” on the SimpliSafe Mobile App. If you do not hear the Base Station respond, the battery within your Motion Sensor may need to be replaced. The Motion Sensor takes a single CR-123A 3V Lithium battery.

Gen3 SimpliSafe: Sensors don’t work because they are out of range. Start by testing out the sensors that are not working properly. You can check them via the panel (follow the instructions below). Press the Menu on and panel and enter your master PIN. Go to the “Test Mode” section and select it. Then the Base Station will enter the Test Mode.Press and release the button on the Water Sensor. The Base Station should announce “Water Sensor” and the timeline should show “Water Sensor Test” on the SimpliSafe Mobile App. If you do not hear the Base Station respond, the battery within the Water Sensor may need to be replaced. The Water Sensor takes a single CR-2032 Lithium 3V …The entry sensor on the back door of an unheated garage is reporting low battery intermittently, particularly at night. My voltage meter reports 3.07 volts for its CR2032 battery. ... SimpliSafe documentation says entry sensor batteries should last up to 10 years, and motion detector batteries should last 3-5 years. https://support.simplisafe ...That lasted about a month. Now I have multiple sensors not responding again. 10 as I write this. I called Simplisafe yesterday and tech support removed all the offending devices, had me power down everything, reinstalled all the sensors and said it was all good at their end. They are sending me two new entry sensors, but that won't fix anything.One of my entry sensors is in an unheated and un-air-conditioned room. It worked perfectly from March through October, but it began to send "sensor error" notices with each cold snap. ... both maintained at 50 degrees in colder months. Sensor was replaced by SimpliSafe and batteries were replaced, still having issues. 1. 0. davey_d.I have discovered that the message claiming a loss of signal from entry sensors in my Simplisafe system is a false positive. If the problem door or window in question is opened when the alarm is set, the alarm is always activated, regardless of the connection status of the sensor with the base station.@Bodoma could be a signal strength issue, or a bad sensor. First step, swap the entry sensor with another one that you know is working properly. Test to see if the issue continues. If it stops, call SS and get the faulty sensor replaced at nc. If it till happens, try moving the base. If still an issue, call SS to troubleshoot further.The motion sensor claims to detect motion within 30 feet, but in all my test runs, the motion sensor will not detect anything until I am about 10 - 12 feet away from it. Sometimes it won't even detect anything at all. I once set it in Away mode and the motion sensor did not trigger the alarm as I walked slowly across the entire area.A voicemail will be left to alert you to the system test, and it will not result in a request for dispatch. Testing the Temperature Sensor. To test the Temperature Sensor, press the button on the top of the Temperature Sensor. You'll hear the Base Station announce, "Freeze Sensor" to confirm the test was successful.

The Base Station should announce “Glassbreak Sensor” and the timeline should show “Glassbreak Sensor Test” on the SimpliSafe Mobile App. If you do not hear the Base Station respond, the battery within the Glassbreak Sensor may need to be replaced. The Glassbreak Sensor takes a single CR-123A Lithium 3V battery.

5. Sensor and magnet are not flush and/or too far apart from each other. 6. Sensors are defective, need replaced. If you're having this many issues despite replacing the sensors, you might consider upgrading to SS3 - if interested, call and ask for a supervisor and then ask for the 40% OFF upgrade offer.Open the SimpliSafe® mobile app on your phone or tablet. Choose My System from the bottom navigation bar. Select Device Settings. Tap on the Entry Sensor you wish to edit. Toggle Instant Trigger ON or OFF by pressing the button. Keypad. Press Menu on the Keypad. Enter your Primary PIN. Choose Devices. Use the rocker to select your Entry SensorAfter 6 weeks, and a few glitches in Simplisafe understanding my problem, two small slim magnets were delivered. How are these installed? An entry sensor obviously needs two pieces. Do I use one of the slim magnets with one of the other large sensors? It's not apparent how they are used, and there were no directions. Any help would be appreciated!The SimpliSafe Base Station is the most critical aspect of the operation of SimpliSafe technology; it contains everything that maintains your SimpliSafe Siren performing at its best. It has motion detectors to detect adjacent activities, a keypad, entry sensors—panic buttons, and a 105dB Siren that will sound if there is any odd activity in ...If the battery does not fix the problem, try swapping the motion sensor with one which does not give a problem. That will show whether the problem is the sensor (if the same problem occurs at the other location) or the location (if the other sensor starts showing the same problem).Oct 3, 2022 · I just replaced the 2032 batteries in all 3 of my entry sensors. One of the sensors now the chime at the base station when I open the door, but the other two do not trigger the chime. Also, I rebooted the base station and got a message that said "entry sensor battery low." The batteries are all brand new, straight from the package. Please help. Wait 24 hours to see if it works okay in both locations, first location, 2nd etc. If they both work fine that it probably is a signal connection issue. If the orignal sensor has issues in the new location, and the 2nd one works okay, then that points to a defective sensor and call SS to replace it (if still under warranty.If that does not help we would then want to troubleshoot your sensor's connection to the Base Station by putting your system into Test Mode. In this Help Center article , we list out the steps of putting your system into Test Mode and troubleshooting its communication with the Base Station.

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Try swapping that sensor (let's call it Sensor A) with another Entry Sensor (let's call that Sensor B) in a different side of the house. If Sensor A starts working properly in the new spot, and Sensor B starts to act up, we'll know it's an environmental issue, and we'll need to troubleshoot what's blocking the signal.SimpliSafe sensors come with the battery pre-installed and adhesive tape pre-applied, making set-up a snap. Compatible with your SimpliSafe home security system ...Though your SimpliSafe sensors should be able to communicate at around 800ft over open air. In a typical home situation, with walls and other obstructions, we would recommend keeping your sensors at half that distance for best performance. But they should definitely be able to reach your Base Station at only 100ft!I've had this same problem. When I first installed the system (base, two keypads, three entry sensors, many motion sensors, water sensor), the entry chimes sounded on the base station, but ever since I installed the rest of the devices including many smoke sensors as well as two additional sirens, the entry chimes stopped sounding, and I have not been able to get the entry chimes to work since.Had Simplisafe almost 2 months. Today, just before 7am, , this appeared: Entry Sensor "Office" is not responding. There are two entry sensors there, so trying to remove and replace battery one at a time.That being said, firmware update using the SimpliSafe app is actively in development! On a separate note, you also mention that one of your sensors is not working? Unfortunately we're even more limited in troubleshooting if you're not on site, but if you give us a bit more detail, we can provide some steps to consider for when you're there. ...I went through the timeline to see if there was any mention in there about 'low battery'. On the dates that I replaced the batteries in the entry sensors, the only postings in the timeline are 'device not responding'. It sure would be nice to know of a low battery ahead of time so I can prevent the sensor from losing contact with the base.If the system is disarmed within 30-60 seconds of the initial alarm signal, this will be considered a false alarm by our monitoring center. That means you will not receive a phone call or an Alarm Text, and emergency services will not be requested to your location. If the system is not disarmed before the time elapses, an alarm will sound.Entry Sensor Not Responding. ... If you purchased a Motion Sensor from SimpliSafe or an authorized retailer prior to April 2023, it is likely that you have the first generation of the Motion Sensor. ... The warning ‘Sensor Not Responding’ for a Motion Sensor Gen 2 can be caused by a couple of things, including a low battery or a weak ... ….

Yesterday got an alert via app that an entry sensor "not responding". Opened and closed the window - got alert that "device restored". Several hours later set alarm to home and got a warning on keypad and audio from base about the same sensor. After a cup of coffee this a.m., checked the keypad and the same sensor was not still not synced.So that’s two entry sensors and the keypad. Last night the keypad stopped communicating with the base. About 5 hours ago I got an email alert saying the sensor to the exterior door has ALSO stopped communicating with the base station. so it’s unlikely this is a battery issue with the keypad and sensor.Yes, even if the keypad dies, all of the other devices on your SimpliSafe System would continue to work. This goes for both the All-New SimpliSafe System as well as the Original SimpliSafe System. The biggest downside to the keypad going dead while the system is Armed would be that you would need to disarm the system in some other manner.Mar 13, 2023 · Unplug your base station. Remove the battery cover at the bottom of the device using a screwdriver. Remove the battery for 10 to 15 seconds before putting the battery back in. Put the cover back on the device. Plug the device back in and wait for 1 to 2 minutes for a new connection. Arm your system to test that is working. Sep 9, 2564 BE ... HOW TO CHANGE THE BATTERY ON A SIMPLI SAFE ENTRY SENSOR ... SIMPLISAFE ENTRY SENSOR NOT RESPONDING FIXED HOW TO FIX SIMPLISAFE SENSOR NOT ...I am hoping that by now Simplisafe is working on the necessary software integration to make official "garage door sensors" a reality. With the Etsy nylon holders and existing entry sensors, I would say the hardware design and other work is already done for them and this could be an easy win.Press the “away” button to select the “5. Test” option. You should hear the Base Station announce that it is entering Test Mode. From here, you can test the device in question through standard use (open the door/window if it is an Entry Sensor, press the test button on top if it is a Motion or Glassbreak Sensor, etc.).Typically, it should say "Sensor not responding" or "Camera not responding", etc. If you encounter a sensor that isn't responding, it can generally mean one of two things. 1. The sensor batteries may be low. 2. The sensor may be having trouble communicating with the Base Station, usually due to range or wireless interference. We have an article ...I have discovered that the message claiming a loss of signal from entry sensors in my Simplisafe system is a false positive. If the problem door or window in question is opened when the alarm is set, the alarm is always activated, regardless of the connection status of the sensor with the base station. Entry sensor not responding simplisafe, This happens only for the Garage Door Entry Sensor, and your other Entry Sensors are still working. Can you go into your sensor's settings to check if that sensor is set as Disabled in either Home or Away Mode? You can find the setting on the SimpliSafe app: Tap the three-bar ☰ Menu icon on the top left; Select My System; Select Device ..., Here's a Quick TLDR. To fix a SimpliSafe motion sensor, start by checking the battery to ensure it's properly connected and not depleted. Next, try repositioning the sensor to see if its placement is affecting its performance. If the issue persists, reset the sensor by removing and reinserting the battery, followed by re-syncing it with the ..., A smarter way to detect motion. Detect intruders with our most accurate Motion Sensor yet. It's designed to tell the difference between people and pets, so if the alarm goes off, you can be confident it's real. With an improved range of 35 ft. and a 90º field of view, it protects an entire room from a single location. Build your security system., If this sensor is not placed on metal, I would then recommend replacing its battery. You can either use a new CR-2032 Lithium 3V battery, or swap out a battery from another working Entry Sensor of yours. If you still experience this same issue even with a new battery, it could be an issue with the sensor itself., 4. Press the test button on the entry sensor for 5 seconds, then let go 5. Base should recognize it, on your screen say "entry sensor found" and name it. 6. Exit dashboard. 7. Log back in, hit refresh, and see if the sensor is listed on your device list. If it doesn't work, can be a bad sensor, which SS will replace at nc under warranty., Your SimpliSafe Entry can notify you about the sensor not responding to signals in case the Base Station is failed to check the censors for more than 24 hours. What you may do is, just Reset the Base Station and wait until the Entry sensors are. fixed and connected properly. Most probably it is gonna take about 45 minutes., Sensors are all on the same floor, same building. Base station has direct line of sight to two of the three sensors, but all three randomly report they are not responding. The base unit was actually above a washing machine, so I’ve moved it to a different location now. Will see what happens over the next couple of days. Thanks!, Entry Sensor Offline. If your Entry Sensor is showing as offline on the SimpliSafe® Mobile App, this is an indicator that the battery within the device needs to be replaced. ... Entry Sensor Not Responding. Sensors in the SimpliSafe system will issue errors when they fail to check in with the Base Station for more than 24 hours. This issue is ..., To remove your Entry Sensor: Open the SimpliSafe® Mobile App on your phone or tablet. Choose My System from the bottom navigation bar. ... If the sensor does not come back online after changing the battery, it's possible that your sensor has been offline for too long. The best step would be to remove the sensor from the SimpliSafe® Mobile ..., The warning ‘Sensor Not Responding’ for a Water Sensor can be caused by a couple of things, including a low battery or a weak connection between the device and the Base Station. As a first step, we’d recommend ensuring that the battery is correctly installed. To do this: Slide the Sensor off its’ bracket by pushing it towards the wall ... , Just received my installation package today and I'm installing the entry sensors. I've installed three so far but I've got a couple of questions. With the alarm mode "Off" for the entry sensor and the "alarm mode" disabled, I get a nice chime from the base when the sensor is "open" however no push notification to the phone or a timeline record., If your Entry Sensor is not on a metal door, ... Simplisafe is being extremely lazy with solving the real software problem and is Hail Mary pass hoping new hardware will make the software problem go away lol. ... The new setup had a lot of trouble with Sensors "Not Responding" until a couple months ago which I assume was due to a much-needed ..., If this sensor is not placed on metal, I would then recommend replacing its battery. You can either use a new CR-2032 Lithium 3V battery, or swap out a battery from another working Entry Sensor of yours. If you still experience this same issue even with a new battery, it could be an issue with the sensor itself., Can I get a replacement for the entry sensor part that attaches to the window casing? It is the larger of the two parts. I have the mounting bracket and part that attaches to the window sash. The window roller shade bottom bar gets stuck under the sensor. In hindsight, I should have mounted the sensor as low as possible., SimpliSafe, a Massachusetts-based US home security brand, is known for its line of home security appliances, including indoor and outdoor cameras, temperature sensors, entry sensors, video doorbells, water sensors, smoke alarms, etc. Harvard Business School student duo Chad and Eleanor Laurens started this company in 2006 when their friends reported numerous break-ins. This brand has […], Tesla is removing ultrasonic sensors from Model 3 and Model Y vehicles, the next step in CEO Elon Musk's Tesla Vision plan. Tesla is removing ultrasonic sensors from Model 3 and Mo..., @Bodoma could be a signal strength issue, or a bad sensor. First step, swap the entry sensor with another one that you know is working properly. Test to see if the issue continues. If it stops, call SS and get the faulty sensor replaced at nc. If it till happens, try moving the base. If still an issue, call SS to troubleshoot further., Try swapping that sensor (let's call it Sensor A) with another Entry Sensor (let's call that Sensor B) in a different side of the house. If Sensor A starts working properly in the new spot, and Sensor B starts to act up, we'll know it's an environmental issue, and we'll need to troubleshoot what's blocking the signal., Given the entire entry sensor is only $14.99, it seems stand-alone magnets should be an easy task. Even having two SKUs (a single magnet SKU, and a dual-magnet SKU) shouldn't be too challenging. ... chips9940. 1 Message. 4 months ago. I think SimpliSafe could care less about us looking for thin magnets. I spoke to a guy this morning in customer ..., Entry Sensors defend your doors and windows. The Base Station will sound a quick chime when a door or window opens while your system is disarmed. Depending on your settings, this can also be set to trigger an alarm. Entry Sensors are made up of two parts: a sensor and a magnet (the smaller of the two components)., So, your SimpliSafe door sensor is acting up, huh? Don't worry - I've got you covered with some DIY solutions to get it back in tip-top shape. Let's dive into a step-by-step guide to fixing your SimpliSafe door sensor. 1. Check the Battery. The first thing you'll want to do when troubleshooting your SimpliSafe door sensor is to check ..., I just replaced the 2032 batteries in all 3 of my entry sensors. One of the sensors now the chime at the base station when I open the door, but the other two do not trigger the chime. Also, I rebooted the base station and got a message that said "entry sensor battery low." The batteries are all brand new, straight from the package. Please help., Given the entire entry sensor is only $14.99, it seems stand-alone magnets should be an easy task. Even having two SKUs (a single magnet SKU, and a dual-magnet SKU) shouldn't be too challenging. ... chips9940. 1 Message. 4 months ago. I think SimpliSafe could care less about us looking for thin magnets. I spoke to a guy this morning in customer ..., Mounting screws (included with the Simplisafe Entry Sensor) Putty knife; Painter's tape; Step-by-Step Guidelines on How to Install Simplisafe Entry Sensor on Door With Molding Step 1: Determine the Ideal Spot for the Sensor. Start by using a tape measure to determine how far from the door frame you want to place the sensor. Ideally, it should ..., The second one doesn't seem to want to sync with the entry sensor on the door. I pushed the button on the sensor like it told me to a few times. It acts like, and tells me it has synced but it clears out within a minute. I pushed the button on the lock, then the entry sensor and that also did not work. Any thoughts?, Posted July 24th, 2013 by SimpliSafe. One of the many uses for a door sensor. Entrances and exits are your home's weakest points—and to a burglar, an unsecured door or window is like a big "WELCOME" sign. That's why door sensors—also known as "entry sensors," "window sensors," or "contact sensors"— are some of the most popular home ..., Simply transmit on 433.920Mhz with a $25 Baofeng radio and it's done. This is effective for 100's of feet, not just by the sensor. It's actually slamming the UHF receiver in the base station. Other problems. The sensors are forgotten by the base if you dont use then weekly.It will still arm and NOT protect that entry (like a window)., The Door Chime setting makes it so that the Base Station will produce a chime sound whenever an Entry Sensor is opened. The setting affects all sensors, and can be found and enabled three ways: On your Keypad: Press Menu. Enter your Master PIN; Navigate to System Settings; Select Chime Volume; Set to the desired level; you can also set it to Off, I just replaced the 2032 batteries in all 3 of my entry sensors. One of the sensors now the chime at the base station when I open the door, but the other two do not trigger the chime. Also, I rebooted the base station and got a message that said "entry sensor battery low." The batteries are all brand new, straight from the package. Please help., Entry Sensor Alert* enables your Base Station to announce the Entry Sensor by name whenever it is opened. For example, if you open the front door you might hear your Base Station reply with "Front Door Entry Sensor open" instead of the usual chime. This feature is available on the SimpliSafe® Mobile App only for iOS and Android devices., Sensors keep losing connectivity or are indicated as “not responding”. Happens in the middle of the night and the only way to shut the alert off is to go to the keypad?  How do you turn off th..., Fix 1: Try to Reset the Sensor. The first thing you can try is to reset the Sensor. To do so, tap the reset button for at least 10 seconds until hearing the indicating beep tone. You can find the reset button just in front of the Sensor. But if the Sensor still does not respond, you have to replace the old battery with a new one., SimpliSafe Entry Sensor (Pack of 4) - Window and Door Protection - Compatible with The SimpliSafe Home Security System - Latest Gen. $49.99 $ 49. 99. Get it as soon as Saturday, May 4. In Stock. Sold by SimpliSafe Inc. and ships from Amazon Fulfillment. +