Check the listing for details. H2 Detector Portable Hydrogen Detector Mointor Range 0-1000ppm Resolution 1ppm. Condition: New. Listed at 250.00 USD. H2 Detector Portable Hydrogen Detector Mointor Range 0-1000ppm Resolution 1ppm Portable single gas detector can make continuous detection to combustible and toxic gases. It is suitable for combustible and toxic gas leakage detection in underground pipe or mines, and keeps the workers safe, prevents the facilities from being destroyed.The detector, adopting excellent-quality sensor, makes detection in the way of natural diffusion. It has good sensitivity and reproducibility. The detector adopts embedded MCU controller, easy to operate. The shell adopts special high strength material and anti-smooth rubber, with the characters of water-proof and dust-proof. Features: *Advanced MCU control with low power consumption; *Adjustable low and high alarm level; *Adjustable calibrating level; *High concentration protection for combustible gas; *Self test for the combustible gas sensor; *Low battery indication; *Self-adjustment function *Visual and audible alarm with vibration; *Advanced self-examination and self-renovation function *Password management to avoid wrong operation; *Explosive proof housing. Accuracy ≦ 5% F.S. Response time T＜30s Indication LCD indicates the time and state Indication of alarm, fault and low voltage with LED, sound, vibration Operating Environment Operating temperature -40℃～70℃ (for combustible gas) Operating temperature: -20℃～50℃ (for toxic gas) Humidity ＜95%RH non-condensing Operating voltage DC3.7V Li battery 1500mAh Range 0-1000ppm Resolution 1ppm L-alarm 50ppm H-alarm 150ppm Working time ≧8h continuously Charging time 4h～6h Sensor life 2 years Protection category IP65 Weight about 130g (including battery but without accessories) Dimension 100mm×60mm×30mm Normal 0 7.8 磅 0 2 false false false EN-US ZH-CN X-NONE MicrosoftInternetExplorer4