Power supply	DC 12V
Alarm concentration	8%LEL
Buzzer sound pressure	≥70dB(1 meter ahead)
Working environment	-10℃~+55℃
Relative humidity	≤95%RH
Stability	long-term operation alarm concentration error is not more than ±5%LEL
Repeatability	test alarm concentration error is not more than 3%LEL
Alarm concentration error	±3%LEL
Alarm mode	sound and light alarm
The sampling method	naturally diffuses
Service life	3 years
Maximum storage number of alarm	1261  records (210 records for alarm, alarm recovery, fault, fault recovery, power on and power off respectively, and 1 records for sensor failure)
Implement standard	GB153222-2019