Total BH-4A Multi Gas Detector (O2+LEL+CO+H2S)

Measurement range: LEL + O2 + CO + H2S

Alarm type: Vibration + Sound + Light

Measurement method: Diffusion

Temperature range, humidity:

Operating temperature: -20°C~60°C

Operating humidity: 5%~95%RH, non-condensing

Battery type: Rechargeable lithium battery, 3.7V, 1800mA.