SMART SENSOR Oxygen Gas Detector Digital Portable Handheld O₂ Gas Tester Rechargeable Precision Oxygen Meter O₂ Concentration Measurement Tester Device for Climbing Tunnel Laboratory and Industry

Features:
PROFESSIONAL TOOL: The O₂ meter is a device that detects the presence of oxygen (O₂) gases in an area, often as part of a safety system. The professional detector adopts the electrochemical principle, which gives a quick and accurate measurement.
POWERFUL FUNCTION: Sound and light dual-alarm when O₂ gas concentration reaches the level of the alarm. With a large LCD screen display the measured results, you can get gas concentration and temperature at a glance.
RECHARGEABLE BATTERY: 3.7V rechargeable lithium battery, with micro USB interface, can be charged through the USB interface of the phone power adapter, computer, etc. Also you can use while charging.
HANDHELD SIZE: The gas meter is compact and lightweight, professional designed to fit comfortable in your palm, easy to carry and operate.
WIDELY APPLICABLE: The oxygen detectors can be used in car, metallurgy, power plant, chemical, mine, tunnel, underground pipelines and other places, effective prevention of hypoxia and oxygen poisoning.