This article is about the All-New SimpliSafe system. If you purchased a system in 2017 or earlier, you have the Original SimpliSafe. If you're not certain which system you have, you can tell the difference here.
The following videos walk through installing Motion Sensors. If you have pets, please watch both installation videos. If you are trying to add a new sensor to an existing system, please see this page.
Testing your motion sensor
NOTE: You can turn down the sensitivity of the motion sensor via the switch on the back of the sensor. Simply slide the motion sensor off its bracket, and you will expose a small black switch. Slide it towards the "L" to lower the sensitivity.
Motion Sensor Installation Overview
Pet Owners - Additional Information