Description Overview GAO Tek Portable Multi Gas Detector is a mini size and high accuracy portable multi gas detector. Easy to operate, comprehensive functions, can measure 4 common gas hazards: carbon monoxide, hydrogen sulphide, flammable gases and oxygen depletion, other multi gases are available for customization. The detector is with a back clip, protected by a silicone case, suitable for different kinds of situations. Features Employ original imported high-precision sensor Four random gas sensors can be combined freely LCD dot matrix display Chinese and English operation The gas concentration unit PPM and mg/m3 can be shifted quickly The battery and voltage can be checked by one press Technical Specifications Gas Detected O2, CH4, CO, H2S Detection Principle Electrochemistry, Catalytic combustion Sampling Method Diffusion Measure Range O2: 0% VOL to 30% VOL CH4: 0% LEL to 100% LEL CO: 0 ppm to 1000 ppm H2S: 0 ppm to 100 ppm Resolution O2: 0.01% VOL CH4: 1% LEL CO: 1 ppmH2S: 0.01 ppm Precision ≤± 2% F.S to 5% F.S. Data Recording Storage capacity of over one hundred thousand sets. Interval time ranges from 10 seconds to 3600 seconds are settable (Optional function) Response Time ≤10 seconds Recovery Time ≤10 seconds Repeatability ≤±1% Linearity Error ≤±1% Zero Shift ≤±1% (F.S/year) Display Monochrome dot matrix display Operating Language Chinese/English Gas Unit ppm, mg/m3, % VOL, % LEL Humidity 0% RH to 95% RH Explosion-Proof Exia ⅡCT 3 Alarm Mode Sound, light, vibration Operating Time 14 hours continuously Charger Travel charger with USB Charging Time 4 hours to 6 hour Degree of Protection IP 65 Temperature -4 °F to 122 °F (-20 °C to 50 °C) Size (5.16 in x 3.27 in x 1.38 in (131 mm x 83 mm x 35 mm) Weight 0.53 lb (240 g)
