Wireless dual-functions smart door window sensor for alarm system
Product Description
l Operating voltage: 3.7V, 200mA (powered by high capacity rechargeable Li-ion battery)
l Open and closed status (of doors and windows) monitoring and alert
l Extra function : emergency alarm
l Low voltage alert with LED light and send signal to alarm host
l Wireless transmission distance: 100M
Frequency choices: 433MHz, 868MHz
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