If your Entry Sensor is showing as offline on the SimpliSafe® Mobile App, this could be an indicator that the battery within the device needs to be replaced.
The Entry 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 replace the battery, slide the sensor off the bracket towards the pairing button. Then replace the lithium battery and slide the sensor back onto its’ bracket. If your Entry Sensor has a cover over the battery, you’ll need to remove that first. You can refer to our Help Center article for further instructions.
Please note that the error may take up to 24 hours to clear from the SimpliSafe® Mobile App after taking these steps, as the Base Station needs to check back in with the sensor. If you want to bypass that timeframe, there are two steps you can take to remove the error from the SimpliSafe® App.
First, place your system into Test Mode and test the sensor to reestablish a connection.
To place your system into Test Mode:
Using your Keypad go to Menu > Enter your Master PIN > Test Mode
Press and release the button on the Entry Sensor. The Base Station should announce “Entry Sensor” and the timeline on the SimpliSafe® App should show “Entry Sensor Test”.
If the Test Mode step does not work, it’s possible that your sensor has been offline for too long. The best step would be to remove the sensor from the SimpliSafe® App and then add it back to your system.
To remove your Entry Sensor:
Open the SimpliSafe® mobile app on your phone or tablet
Choose My System from the bottom navigation bar
Select Device Settings
Tap on the sensor you wish to remove
Choose ‘Remove Device’
To reinstall your Entry Sensor:
Open the SimpliSafe® Mobile App on your phone or tablet
Navigate to the three-bar menu (hamburger menu) in the upper left corner of the app
Choose Add Device or Camera from the list of available menu options
Tap on Get Started to proceed
Select Entry Sensor from the list of available products
Follow the in-app prompts to add the sensor back to your system
