Description Overview GAOTek electrochemical oxygen gas detector could detect combustible gas, O2 and two other types of toxic gases continuously and simultaneously. It is widely used in the area where explosion proof is required or toxic gas leak like underground channels or mining industry, to protect the workers’ life and avoid damage to the relevant equipment. Features Detects up to 4 gases Natural diffusion sampling method High sensitivity sensor and repeatability 32-bit built-in MCU High reliability and self-adaptability ability Full functions, effortless operation CSTN colorful LCD, more intuitionistic, abundant, and clear indication Compact design, easy to carry High-strength engineering plastic 500 pcs data records Technical Specifications Accuracy ≤±5% F.S. Resolution 0.1% Vol (O2), 1 ppm (CO), 0.1 ppm (H2S), 1% LEL (EX) Indication LCD display real-time and system status, LED, audio and vibration alert for gas leakage, fault, and low voltage Sensor Plug-in electrochemical sensor Alarm type Low and high alarm, multiple gas alarm, sensor alarm, battery low alarm, prompt tone, automatic shutdown alarm Response time ≤30 s Working time ≥8 hrs continuously (without alarm) Power source DC 3.7 V Li-ion battery, 1800 mAh Charging time 6 hrs to 8 hrs Self-checking function Self-checking battery, display, sensor, and hardware failure Gas sensor life 2 years Explosion-proof grade ExiaIICT3 Protection grade IP 65 Working humidity <95% RH (no dew) Working temperature -4 °F to 122 °F (-20 °C to 50 °C) Dimensions 5.11 in x 2.63 in x 1.18 in (130 mm x 67 mm x 30 mm) Weight Approximately 0.88 lb (400 g) with battery
