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heat detector, heat alarm
Feartures:
1)2 or 4 wire modles
The range includes:HD912-2 2 wire heat alarmHD912-2L 2 wire heat alarm with remote LED outputHD912-4 4 wire heat alarm (12/24VDC)HD912-4B 4 wire heat alarm with buzzer (12/24VDC)HD912-4AR 4 wire heat alarm with auto-reset function (12/24VDC)HD912-4ARB 4 wire heat alarm with auto-reset function and buzzer (12/24VDC)
2)Advanced detectiona and discrimination algorithms
3)Easy installation and mantenance
4)Sleek low-profil housing design
5)Durable sensor head , no need to replace
6)Normai open and normal closed selectable rely output
7)Five years limited warranty
UL approved Heat detector