Feature:1. Smart chip, low power consumption, high precision, stable performance, respond quickly.2. 0-30% oxygen content detection, with sound, light and vibration alarm.3. Measure the environment temperature, with 2 temperature units ( and ).4. The portable oxygen detector is a kind of essential safety instrument which can continuously detect the oxygen concentration in the working environment. It is suitable for explosion-proof, toxic gas leakage, underground pipelines or underground mines and other places.5. This instrument is a natural diffusion method for detecting gas concentration, using high performance electrochemical sensor, with excellent sensitivity and excellent repeatability.6. The instrument adopts embedded control technology, simple operation, complete functions, high reliability.7. This O2 detector is applicable to the concentration of oxygen in the ambient air detection, are widely used in metallurgy, power plant, chemical, mine, tunnel, underground pipelines and other places, effective prevention of hypoxia and oxygen poisoning.Specification:Features:Smart chip, low power consumption, high precision, stable performance, respond quickly.0-30% oxygen content detection, with sound, light and vibration alarm.Measure the environment temperature, with 2 temperature units ( and ).The portable oxygen detector is a kind of essential safety instrument which can continuously detect the oxygen concentration in the working environment. It is suitable for explosion-proof, toxic gas leakage, underground pipelines or underground mines and other places.This instrument is a natural diffusion method for detecting gas concentration, using high performance electrochemical sensor, with excellent sensitivity and excellent repeatability.The instrument adopts embedded micro control technology, simple operation, complete functions, high reliability. This O2 detector is applicable to the concentration of oxygen in the ambient air detection, are widely used in metallurgy, power plant, chemical, mine, tunnel, underground pipelines and other places, effective prevention of hypoxia and oxygen poisoning.Specification:Sensor: Electrochemical principleTest Gases: Oxygen concentration (O2)Temperature Measurement: Ambient temperature Display Unit: O2: %VOLTemperature: / Measurement Range: O2: 0 30%VOLTemperature: -1550 / 5122 Resolution: O2: 0.1% Temperature: 0.1 / 0.1Accuracy: O2: ±3.0%FS Temperature: ±1.5Response Time: T90<15s Alarm: Sound and light vibration alarm Alarm Point: low alarm point 19.5%VOL, high alarm point 23.5%VOL Battery Type: 1 * 3.7V 1200mAh rechargeable lithium batteryOperating Temperature: -1550 / 5122 Operation Humidity: 15%95%RH (non condensation)Storage Case Size: 240 * 198 * 55mm / 9.45 * 7.79 * 2.16inItem Size: Approx. 180 * 70 * 30mm / 7.09 * 2.76 * 1.18inItem Weight: Approx. 209g / 7.39ozPackage Weight: Approx. 677g / 23.88ozPackage Size: Approx. 24.5 * 20 * 5.5cm / 9.65 * 7.88 * 2.17inPackage List:1 * O2 Detector1 * USB Cable1 * Storage Case1 * User Manual (Manual)Package List:1 * O2 Detector1 * USB Cable1 * Storage Case1 * User Manual (Manual)