DCPXT2

Wireless Mid-size 2-Zone Door Contact (30m distance) c/w 3 "AAA" Batteries Each zone is independent and has its own serial number
Zone 1: High sensitivity Reed switch (magnet included)
Zone 2: Universal transmitter input (N.O. / N.C.)
Dimensions: 11cm (H) x 3.2cm (W) x 2.5cm (D)