Domestic portable multi-gas leak detector alarm TN-4 portable Quad gas detector TN-4 is a superior performance of composite gas detection alarm, which can simultaneously be gas, oxygen, carbon monoxide, hydrogen sulfide or other Other tests for safety testing of various industrial hazardous and confined space entry ago. Four portable gas detector TN-4 has a large LCD backlit display, with sound, dichroism alarm and vibrating alert to ensure that in a very hostile work environment can also detect dangerous gases and promptly prevent the operator prompts. Detector shell is made of high-strength engineering materials, composite elastic rubber materials from refined, high strength, feel good, and waterproof, dust-proof, explosion-proof. Four portable gas detector TN-4 Features: * Import sensor, stable and reliable * high-strength ABS plastic, composite elastic rubber material shell * sound, vibration, and red and yellow colored light alarm * Large screen digital, character display, instantaneous, peak, average display * Very low maintenance costs * may support any one or four-gas detector portable Quad gas detector TN-4 Technical parameters Detection Range Accuracy sensor life Gas sensor type oxygen (O2) 0 -30% Vol <± 1.5% (FS) 24 months electrochemically gas (EX) 0-100% LEL <± 5% (FS) 36 months catalytic combustion of carbon monoxide (CO) 0-999ppm <± 5% ( FS) 24 months electrochemical hydrogen sulfide (H2S) 0-100.0ppm <± 5% (FS) 24 months electrochemical battery: 3.6V Li-ion rechargeable battery Display: Large LCD display Alarm: sound, vibration, and red and yellow two color light alarm Direct reading: instantaneous, peak, battery voltage, TWA, STEL proof mark: Exibd II CT3 Protection class: IP45 Operating temperature: -10∽40 ℃ Operating Humidity: 5-90% RH Dimensions: 130mm × 75mm × 35mm Weight: 210g 

keywords: Portable gas detector, four gas detector, multi-gas detector, multi-gas detector, multi-gas leak alarm,