Gas detectors can be used to detect combustible, flammable and toxic gases, and oxygen depletion, etc. This oxygen detector is widely used in industry and can be found in locations, such as on oil rigs, to monitor manufacture processes and emerging technologies such as photovoltaic. They may also be used in firefighting.Features:Adopting electrochemical sensor, which gives a quick and accurate measurement.This multifunctional Rechargeable oxygen detector also can measure temperature.With a large LCD screen display the measured results, you can get oxygen concentration and temperature at a glance.The oxygen monitor has audio and visual alarm, you can set audio alarm decibel that can give you a obvious prompt.Portable and handheld, easy to operate and carry. Widely used in chemical industry, electronic industry, underground operations, in-car oxygen detection.Specification: SMART SENSORTypeAR8100 Gas Type Oxygen Measuring range 0-25% Resolution 5ppmBasic errorLess than 1.5% full scaleTemperature range-10-50Response time<15sRecovery time<15sThe principle of sensorElectrochemical type, life for 2 yearsDisplayLCDAlarm modeAcoustic and lightBattery3.7V rechargeable lithium batteryOperating time>90h (continue working)Operation humidity<95%RHOperation temperature-10-50Weight743g/26.2ozPackage List:1 * Oxygen Detector1 * USB Data Cable1 * Battery1 * Case1 * User Manual1 * CE CertificationNote:Please kindly make a note if you need any adapter.Please allow slight error due to manual measurement. Thanks for your understanding..Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.