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SN2900 Wired/Wireless 8 group and 72 zones networking system English LCD displays everything you’d like to know Full compliance with ADEMCO PROTOCOL and BSIA FAST FORMAT 8-wire connection to any group, every group could be registered 9 detectors Each zone type programmable (type: No movement auto arming zone, exit/entry delay, 24 hours zone, sounder/silent when alarming) Multiple arming methods: Away arming, Part arming, 24 hour arming, and each zone could be separately armed/disarmed） Arm/disarm, listen in, or speak to the occupants from a remote telephone When alarming, monitor center operator or the user could listen in, speak, or start the siren from a remote place Timed Auto-Arming/Disarming Built-in high capacity rechargeable battery, auto charge/discharge 85 event log about arming, disarming, and alarming (with time and date stamp), viewable directly on the panel LCD