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<p>"BOSEAN" (China) Portable Multi Gas Detector use to measure 4 gases CO, EX, H2S &amp; O2.<br> <br> BRIGHT FEATURES;<br> <br> * Natural diffusion sampling method and high-sensitivity sensor, with high sensitivity and repeatability.<br> <br> * 32-bit built-in MCU, high reliability and self-adaptation ability.<br> <br> * Full functions, easy operation.<br> <br> * CSTN colorful LCD, more intuitionistic, abundant and clear indication.<br> <br> * Compact design, easy carrying.<br> <br> * High strength engineering plastics and compound anti-slippery rubber; high strength, water-proof, dust-proof and explosion-proof.<br> <br> *1200pcs data records, can be contact with computer via software.<br> <br> SPECIFICATIONS<br> <br> Gas sampling method : Natural diffusion<br> <br> Detecting gas : Combustible gas, H2S, CO, O2<br> <br> Accuracy: ≦±5% F.S.<br> <br> Response Time : ≦60s<br> <br> Indication :LCD displays real-time and system status; LED, audio and vibration alert for gas leakage, fault and low voltage.<br> <br> Working environment: -10℃～50℃, ＜95%RH (no dew)<br> <br> Power Source : DC 3.7V Li-on battery, 1800mAh<br> <br> Charging time : 6h~8h<br> <br> Working time: ≧8h continuously (without alarming)<br> <br> Gas Sensor Life : 2 years<br> <br> Explosion-proof grade: ExibIICT4 Gb<br> <br> Protection Grade : IP65<br> <br> Weight: Approx 240g</p>