Use advanced detecting element to ensure the reliable protection Equipped with power and 2-step LED indicator Stand alone or can be connected with security system Easy installation Can be used in kitchen, warehouse, basement parking, indoors parking, factory and etc. Detecting element Alarm level LPG/LNG: Low explosion limit (LEL) 1/10~1/4, alarm will be activated after LNG/LPG level reaches the set point for 25 sec. (Conform UL1484 standard)(1) LNG: Red LED blinks, siren is activated CO: Orange LED blinks, siren is activated Red LED blinks, siren is activated Alarm volume Signal output LNG: Catalytic combustion CO: Electro-chemical LPG/LNG: Low explosion limit (LEL) 1/10~1/4, alarm will be activated after LNG/LPG level reaches the set point for 25 sec. (Conform UL1484 standard)(1) CO：70ppm = 90min., 150ppm = 15min., 400ppm = 4~5min., 600ppm=within 1min. (Conform UL 2034 standard)(2) Catalytic combustion Over 90dB Dry contact, relay output Relay contact capacity Dry contact, relay output Pulse + relay output Pulse + relay output Warm-up time 40 secs. after switching on power Power supply Power consumption Ceiling mount Wall mount UL1484 (Residential gas detectors): In order to avoid false alarm, no alarm should be activated when gas level is lower than 1/100 (LEL). The alarm range should be between 1/100~1/4 (LEL). (2) UL2034 (Single and multiple station Carbon monoxide alarms): When carbon monoxide level is 70ppm - alarm has to be activated between 60~240 min; 150ppm - alarm has to be activated between 10~50 min; 400ppm - alarm has to be activated between 4~15 min *All information is subject to change without prior n