Feature: 1. FAST AND ACCURATE: Nitrogen dioxide detector use a 32 bit microprocessor, coupled with high speed, high accuracy processing circuit, to achieve fast and accurate measurement 2. USB CONNECTION: Nitrogen dioxide gas detector reserved USB interface, use USB cable and computer communication can achieve data export and deletion 3. DISPLAY PARAMETER: The NO2 detector has a 3.5in TFT color display with a resolution of 480x320, and the function instructions make the operation easy to see 4. EASY TO OPERATE: NO2 gas detector has a full range of temperature digital compensation, come with buttons, can easily achieve parameter viewing, setting and other operations 5. MULTIPLE UNITS: Nitrogen dioxide detector can be switched between different units by modifying coefficient, such as ppm and mg/m³ 6. STORAGE FUNCTION: Nitrogen dioxide tester can store 100,000 historical data, 1000 alarm record, historical data storage interval can be freely set, and has Chinese and English switch display function Specification: Item Type: Nitrogen Dioxide Detector Shell Material: PC Protection Class: IP65 Accuracy: ≤±3%F.S. Main Units: Ppm, ppb, mg/m³, ug/m³, %VOL, %LEL, etc. Working Environment Temperature: -20~50℃ Working Humidity: 10~95%RH Non condensing Data Interface: Mini USB(ladder interface), combined with charging interface Charging Interface: 5VDC, combined with data interface Battery Capacity: 1 x Rechargeable lithium battery 5400mAh(not include) Detection Method: Pump suction, pump speed can be fine tuned. Package List: 1 x Detector1 x Probe Head1 x USB Cable2 x Key1 x Storage Box1 x User Manual