Feature:1. APPLICABLE SCENARIO: Oxygen detector with 0~100 percent V0L test range, mainly used for oxygenerator purity test, industry oxygen concentration test, these are need high concentration of oxygen detector measurement range2. ACCURATE AND SENSITIVE: Oxygen detector has good sensitivity and excellent repeatability, short response time, timely detection and timely alarm3. WITH ALARM: The instrument support high alarm value and low alarm value setting, beyond the alarm setting value will beep, flash, alarm prompt4. FAST DETECTION: Oxygen detector meter pump accelerate air flow for fast and accurate detection, plus a hose to measure gas in tight spaces5. WITH BATTERY: Oxygen detector monitor instrument with built in rechargeable lithium battery, energy saving and environmental protection, say goodbye to cumbersome, battery disassembly is worry free6. CLEAR BACKLIGHT: O2 detector support the backlight display function, and the value can be clearly displayed at night, easy for you to readSpecification:Item Type: O2 Oxygen Concentration DetectorMaterial: ABSDetecting Gas: OxygenBattery: 1 x 3.7V rechargeable battery, Battery Capacity: 1000mAhRange: 0-100 percent VOLAccuracy: 0.1%Temperature Range: -10 to 50Humidity Range: 1%RH to 99%RHResponse Time: 15sRecovery Time: 15sSensor Principle: Electrochemical principleWorking Time: >90h(continuous operation).Package List:1 x Detector1 x Hose1 x Battery1 x USB Cable1 x User Manual1 x Storage Box