HD4005 Gas and Carbon Monoxide Detector with 4G Communication Sound & Visual Alarm Phone Call & SMS Notification Backup Battery

High-concerned chemical：None Model Number：HD4005 Brand Name：CCEsafety Origin：Mainland China work gas：methan,carbon monoxide detection method：free moving rated voltage：AC220V methane detection range：0-20% LEL CO detection range：0-500x10-6 vol methane alarm trigger value：10%LEL CO alarm trigger value：100x10-6 vol sound intensity：≥80dB valve socket：DC9V-DC12V temperature：-10℃-55℃ humidity：≤95% RHno condensation battery capacity：2000mAh

High-concerned chemical: None Model Number: HD4005 Brand Name: CCEsafety Origin: Mainland China work gas: methan,carbon monoxide detection method: free moving rated voltage: AC220V methane detection range: 0-20% LEL CO detection range: 0-500x10-6 vol methane alarm trigger value: 10%LEL CO alarm trigger value: 100x10-6 vol sound intensity: ≥80dB valve socket: DC9V-DC12V temperature: -10℃-55℃ humidity: ≤95% RHno condensation battery capacity: 2000mAh