Features 2-zone capabilities where each zone is independent and has its own serial number Zone 1 - One high-sensitivity reed switch (magnet included) Zone 2 - Universal transmitter input (N.O./N.C.) Wireless range in a typical residential environment. - 30m (100ft) with MG6160 and MG6130. - 60m (200ft) with MG5000, MG5050 and RTX3 Available in 433MHz or 868MHz Anti-tamper switch Dimensions: 11cm x 3.2cm x 2.5cm (4.4in x 1.3in x 1in)