One high-sensitivity reed switch – can only use magnet(included), no wired inputs Wireless range in a typical residential environment: – 20m with MG6160, MG6130, and MG6250; – 40m with MG5000, MG5050 and RTX3 Available in 433MHz or 868MHz Anti-tamper switch Dimensions: 4.4cm x 3.0cm x 1.7cm
