Portable Multi Gas Detector, O2, CO, H2S, EX 4 in 1 Handheld Gas Monitor, Rechar

H2S Sensor range: 0-100ppm. Gas type: combustible gas. Check gas: cocoa gas, oxygen, carbon monoxide, hydrogen sulphide. Gas type: four-in-one gas detector. 3 types of alarm: sound alarm, light alarm, vibration alarm.

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