The SMK-500 must be installed per NFPA instructions, and can only detect for smoke (not combustible fumes, temperatures or flames). It is recommended for corridors, basements, penthouses or other confined rooms.
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|Power supply||DC 9V 18mA|
|LED frequency in working state||Once every 32 sec|
|LED frequency in alarming state||Once every 0.62 sec|
|LED frequency in low battery state||Once every 32 sec (last for 30 days)|
|Radio frequency||315MHz or 433.92MHz|
|Transmitting distance||≤80m (in open area)|
|Housing material||ABS plastic|
|Operation Condition||Temperature: -10°C ~ +55°C|
|Relative humidity: ≤80% (non-condensing)|
|Dimensions (L x W x H)||102 x 102 x 31mm|