NEW Ring Contact Sensor 2-Pack - White For Ring Alarm 1st Generation In Box

Simplisafe 1st Generation Motion Sensor

Simplisafe Motion Detection Sensor MS1000 for 1st Generation system

SimpliSafe (MS1000) Original 1st Generation Motion Detector Sensor - NEW in box

SimpliSafe Motion Sensor - First 1st Generation, Wireless Security System

SimpliSafe Home Security Wireless Motion Sensor MS1000 Gen 1 - Brand New In Box

Simplisafe Motion Detection Sensor MS1000 for 1st Generation system