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The Smoke Detector takes one (1) Panasonic CR-123A Lithium 3V battery and has a life expectancy between 3-5 years depending on usage.To change your Smoke Detector battery, twist it off its bracket and open the back panel. Then, replace the lithium battery and put the device back in place.
Battery / Power
Help Center Article
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Smoke Detectors
The Smoke Detector alerts you at the first signs of smoke. Use this guide to install your Gen 3 SimpliSafe Smoke Detector.
Install / Set Up Help
SimpliSafe's Smoke Detectors use photoelectric sensors, meaning they detect smoke through the distortion of a light beam inside the detector. Photoelectric smoke detectors will detect smoke faster than other detector types but can occasionally result in a false alarm. False alarms often occur w
Errors / Warnings
The Smoke Detector, Carbon Monoxide Detector, and 2-in-1 Smoke & CO Detector all feature a Tamper Switch, to make sure that the device is properly secured into its mounting bracket.It’s a small button on the back of the unit that is normally held down by part of the mounting bracket. When it is
LED / Lights
Smoke & CO Detector
The Smoke Detector has several light states that reflect the status of the device and change with the presence of smoke within your home. This guide will highlight the various indicators and their meanings. IndicatorMeaningRed flashing light every 5–6 minutes and no soundsNormal.Red flashing light e
Test Mode is a great way to test the connection between your Base Station and other sensors. We recommend periodically placing your system into Test Mode to ensure that your sensors are still communicating with the Base Station without any errors. Placing Your System Into Test ModeDisarm your system
Troubleshoot an Issue
You may encounter a constant yellow light that is not accompanied by a chirp on your Smoke Detector, CO Detector, or Smoke & CO Detector, accompanied by the app error “Tampering Detected”. This is an indication that the Smoke and/or CO Detector is not fully attached to its bracket, and needs to
