Heaf temperature alarms

Product description:
-Ceiling or wall mounting
-Easy installation
-9V battery operated (included)
-Detection of intense fires with fast response.
-Flash alarm indicator (red)
-Self-test function
-Low battery signal
-Safety-clip feature, not allow mounting of the heat alarm without
battery installed
-High stability and reliability
-Relative Humidity:10% ~ 95%
-Operating Current:< 30uA (standby) and 30mA (alarm working)
-Horn level:85dB within 1 meter
-Operation:When the ambient
-temperature rise 70oC(or 50oC or 60oC)within 5 seconds, the alarm will sound.
-AK-228- Standard 70oC. (Can be adjusted for special location and customer request.)
-Battery life:1 year min
- Interconnecting Gas detector
(1)Circuit for normally closed rely contacts
(2)Circuit for normally opened rely contacts
(3)Operating Frequency:433 MHZ/315MHZ (optional)