The Honeywell 5820L is a slimline, wireless door and window contact transmitter that is nearly half the size of standard door/window transmitters. It is ideal for casement and double-hung windows. The 5820L provides a single zone of protection, and installs easily on doors or windows with the included mounting hardware or double-sided adhesive tape.
Dimension of Sensor: 3.0" H x 0.5" W x 0.8" D (76.2mm x 12.7mm x 20.3mm)
Operating Temperature: 32°F to 122°F (0°C to 50°C) non-condensing