16-channel local alarm input (expandable to 80 channels); supports NO/NC detector, detector tamper, short circuit and mask alarm 4 channel alarm outputs (expandable to 80 channels), along with forced start/shutdown, auto control, and alarm linkage Multiple zone types, such as instant zone, delayed zone, and 24-hour silent zone Alarm input/output port circuit protection Supports fault alarms, including controller tamper alarm, keypad tamper alarm, power failure alarm, battery failure alarm, battery under-voltage alarm, PSTN offline alarm, network disconnection alarm, IP conflict alarm, and MAC conflict alarm 2-channel RS-485 ports; up to 32-channel keypads; printer connection Emergency alarms, such as fire, medical and duress alarm CID (Contact ID Protocol); reuses landline telephone port (personal call requires customized PSTN hardware module) Configuration method includes keypad and web; quick configuration guide; remote configuration and search Up to 8 subsystems; single zone and subsystem arming/disarming; arming/disarming with keypad, IC card and other methods Supports 3 alarm receiving center at the same time, supports 3 different alarm reporting strategies High-volume log search function Remote update Multiple device recovery methods Two Ethernet ports and two wired alarm centers

16-channel local alarm input (expandable to 256 channels); supports NO/NC detector, detector tamper, short circuit and mask alarm 4 channel alarm outputs (expandable to 256 channels), along with forced start/shutdown, auto control, and alarm linkage Multiple zone types, such as instant zone, delayed zone, and 24-hour silent zone Alarm input/output port circuit protection Supports fault alarms, including controller tamper alarm, keypad tamper alarm, power failure alarm, battery failure alarm, battery under-voltage alarm, PSTN offline alarm, network disconnection alarm, IP conflict alarm, and MAC conflict alarm 2-channel RS-485 ports; up to 32-channel keypads; printer connection Emergency alarms, such as fire, medical and duress alarm CID (Contact ID Protocol); reuses landline telephone port (personal call requires customized PSTN hardware module) Configuration method includes keypad and web; quick configuration guide; remote configuration and search Up to 8 subsystems; single zone and subsystem arming/disarming; arming/disarming with keypad, IC card and other methods Supports 3 alarm receiving center at the same time, supports 3 different alarm reporting strategies High-volume log search function Remote update Multiple device recovery methods Two Ethernet ports and two wired alarm centers

Dahua DHI-ARD1231-W is a wireless PIR with two level sensitivity, 1Km transmit distance and tamper switch equipped.

5 intuitive indicators, including zone status, fault, arming/disarming, network, and communication indicators to quickly identify the status of the system Powerful search engine to find information on the zone status, system faults, program version, and communication parameters Arm and disarm locally for added convenience Multiple search functions such as controller programming, arming/disarming, alarm cancelling, bypassing/unbypassing, relay operations, zone status search, and walk test

5 intuitive indicators, including zone status, fault, arming/disarming, network, and communication indicators to quickly identify the status of the system Powerful search engine to find information on the zone status, system faults, program version, and communication parameters Arm and disarm with the IC card or locally for added convenience Multiple search functions such as controller programming, arming/disarming, alarm cancelling, bypassing/unbypassing, relay operations, zone status search, and walk test