Feature: 1. 4 in 1: Gas monitor can detect four kinds of gases, namely combustible gas, oxygen, carbon monoxide and hydrogen sulfide, with powerful functions. 2. Reliable Performance: The gas detector has quick response speed, accurate inductive measurement, sound and light alarm function, and stable and reliable performance. 3. ABS Housing: The shell of the detector is made of ABS material, which is waterproof, dustproof and explosion proof. 4. Waterproof: The waterproof rating of the detector is IP65, and even high pressure water jets will not have any effect on the instrument. 5. Wide Application: Gas detectors can be used in petroleum, chemical, environmental protection metallurgy, oil refining, gas transmission and distribution, biochemical medicine, agriculture and other industries. Specification: Item Type: Gas Detector Material: ABS Item Model Number: PLT850 Measurement Accuracy: ≤±5%FS Response Time: T<30s Waterproof Grade: IP65 Working Environment: -20℃-50℃, <95% non condensing relative humidity Voltage: 100-240V Battery: 1 x 18650 1800mAh Li ion battery (built in). Package List: 1 x Gas Detector1 x Data Cable1 x Plug1 x Cover1 x Instruction1 x Storage Box