The STI-3601 is an additional wireless motion sensor that alerts when someone enters the detection zone. The signal passes through doors, walls and floors and has a 140° x 40 ft. detection zone.
To purchase the motion sensor with the required receiver, see the STI-3610 Motion-Activated Wireless Chime.
Note: End user must verify the alarm and battery (CR123A) every six months and replace battery annually or as required.
