Place of Origin : Zhejiang,China

web:https://www.kingdun.com/product/carbon-monoxide-alarm/classic-carbon-monoxide-alarm-lm-201a.html

Response time:
33±3PPM>120minutes
55±5PPM 60-90minutes
110±10PPM 10-40minutes
330±30PPM <3minutes
Power source: 3pcs 1 .5V AA battery.
Standby mode: <90uA
Working mode: <1.5mA
Alarming mode: <75mA
Alarm decibel =85dB/1 m
Push to Test
Low battery signal
comply with UL standard