SMART SENSOR Portable and Handheld Multi Gas Monitor Handheld Gas Detector Oxygen/Carbon Monoxide/Hydrogen Sulfide/Combustible Gas

Features:
Made of fine-quality material, high sensitive and accurate measurement.
Detecting 4 gases: Oxygen/carbon monoxide/hydrogen sulfide/combustible gas.
Gas measurement range:
Oxygen: 0~30% vol; Carbon monoxide: 0~999ppm; Hydrogen sulfide:0~500ppm; Combustible:0~100%LEL
High and Low alarm function with three alarm methods: When gas concentration reach preset high or low alarm value, the meter will Sound, light alarm with vibration, meanwhile, high/low alarm value is adjustable based on your specific requirements.
Digital LCD display with backlight function: High density digital LCD screen display real time gas concentration value, backlight function is suitable use for dark areas.
Durable power supply: Built-in rechargeable 3.7V Li-thion battery, can work continuously 18 hours with full charge(slightly vary with working condition).
Compact size and unique clip design: It is convenient for user to carry around and operate.
Strict and qualified certificate: This product compiled with following standard and regulation: JJG693; JJG695: JJG915 and GB3836 series anti-explosion standard.