Quality smoke alarm alerts automatically sends message to receiver and takes link-up action according to the orders received from the message receiver by cellphone or laptop anywhere in the world.
detecting -distance from an angle horizontal 0-110 degree or a vertical0-60 degree, it is capable to detect far away of 6-12m.
voltage  DC 3V
working current  ≤45mA
transmitting frequency 433MHz
transmitting power  <10mW
action distance  >50m
anti-interference  >30V/M
sensitivity  -105dB  
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