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Products > Relay > Shenzhen Chitongda Electronic Co.,Ltd | Similar Products

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GSM Alarm System with MMS&SMS Function(YL-007M8A): relay linkage, remote controlling appliance swSiren port for shift between silence and siren. Especially suitable for storeroom, garage and the places where have no telephone line. Technical ...

Wireless GSM/SMS Auto-Dial Alarm System (YL-007M2B): relay available for customer application. 10. Easy to be installed and operated. 11. Built-in battery can continue to work for 8~10 hours when power off. 12. No need for fixed telephone line, only ...

DVR Alarm System with MMS&SMS Function(YL-007M8): relay output. Control panel has two input ports, which can connect with wired devices (normally open). Siren port for shift between silence and siren. Can work with wireless detectors or sensors like ...

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GSM Alarm System with MMS&SMS Function(YL-007M8A)