Wireless Door/Window Sensor

Sensor Overview
The sensor is mounted on either the door or window and the magnet on the frame (or which ever way works best). Both parts can be placed up to 1/2 inch apart from each other (or until the light on the sensor doesn't flash). They can be mounted using the included mounting hardware or double-sided sticky foam pads.

The sensor will send a notifications to the alarm when the battery needs to be replaced.

Door Chime Feature
When the system is disarmed, opening a door or window will cause the alarm panel to sound a door chime to let you know it's been opened. Great for front and back doors when you want to know where the children are.

Ready-to-Arm Feature
This sensor supports having the alarm system tell you, when you are arming the system, if you have left a door or window open. You will get a notification on the screen of unclosed doors and windows as well as a voice notification from the panel.
 
-- Sensor Specifications --
Battery: 3x AAA
Battery Life: 1 Year
Antenna Range: ~250 ft. – 450 ft.
Frequency: 433mh
Encryption: 36 Data-Digit
Current: ~5uA(standby), ~15mA(when triggered)
Recommended Working Temperature: 14F to 122F (-10C to 50C)

-- Sensor Dimensions --
Sensor: 3.15 x 1.26 x 0.94 inches (8.00 x 3.20 x 2.39 cm)
Magnet: 2.50 x 0.50 x 0.50 inches (6.35 x 1.27 x 1.27 cm)

-- Compatibility --
STS-407, STS-408, STS-410, STS-411, STS-412, STS-415, STS-420, STS-421, STS-450, STS-451, STS-455