Features:
-Ceiling or wall mounting
-Easy installation
-Detection of intense fires with fast response.
-Flash alarm indicator (red)
-Self-test function
-Low battery signal
-High stability and reliability
-Loud 85dB alarm signal

-12-24V D.C.,
-Standby current: a??50uA;
-Alarming current: a??50mA;
-Sound level: 85dB (from 10 inches away); ----Operating humidity: 10 to 90 percent;
-Operating temperature: -10 to +85 degrees;
-Relay output;
-Powr-off reset;
-Detecting area: 20 square meter;
-LED indicator: flash one time every 10 seconds, rapidly flash indicates alarming