Interconnection alarm system wireless ADEMCO PSTN alarm panel Compatible with CMS security service software for PC monitor. Telephone line dialing communication module for voice and SMS alarm. ADEMCO CID contact protocol to connect with security center. This security system includes 1 interconnection alarm panel, 1 wireless panic button, 2 remote controller. This is wireless interconnection alarm panel with wireless communication distance 2000m (6557 feet). It has built-in repeater, so, if the first alarm goes off, it send out alarm as well, other alarm panel will go off immediately and send out alarm. So, all the interconnected alarm host will go off. You can set maximum 99 interconnected alarm host. So, the wireless interconnection alarm system can be used for campus emergency alarm, factory alarm, shopping mall security service for burglar alarm or fire alarm. The alarm host has built-in siren and the sound type, sound level can be adjusted. This alarm panel is HB brand and the solar power wireless infrared detector, break beam system can automatically learn code with the wireless receive host. It has 100 independent wireless defense zones and each defense zone can be armed or disarmed independently. Zone attribute such as zone type, zone name, zone address can be edited. The wireless receive host can pre-set two groups of on/off times and can indicate present on/off state. Three kinds of alarm sound and four levels of alarm sound volume are optional. 10 pieces of up-to date alarm message will be displayed simultaneously. 60 pieces of latest alarm message can be inquired. Built-in backup battery is optional. And it is equipped with floating charge device. A set of normally open relay output, a set of normally closed relay output and +12VDC output are provided to control other device such as alarm siren strobe, alarm alarm linkage. It has tamper resistant function. Manual can be downloaded at https://www.vedard.com/forum/post18830.html