GAOTek Gas Detector For Nitrogen Dioxide

Description Features Adjustable alarm point and zero-set LCD Display with English menu Audible, visual, vibration alarm Can keep 3000 alarm records Rechargeable lithium battery USB interface charging 180° rotatable screen for easy use Displaying battery capacity   Technical Specifications Battery 3.7 V, 1700 mAh lithium battery Precision ± 2% FS Working environment 14 °F to 131 °F (-10 °C to 55 °C) Detection principle Catalytic/electrochemical/Infrared Alarm method Light/sound/Vibration Sampling Natural diffusion Measurement range 0% LEL to 100% LEL (lower explosive limit), 0% VOL to 100% VOL (volume), 0 ppm to 1000 ppm (parts per million), 0% VOL to 30% VOL, 0 ppm to 1000 ppm, 0 ppm to 20 ppm, etc. Measurable gas EX combustible gases, CO, O2, H2S, NO2, natural gas, Methane, NO, SO2, NH3, H2, or other gases as customer requirements Display mode LCD displays real-time data and alarm status and detects gas Explosion-proof mark Ex IB IIB T4 Gb Response time T 90 < 30 s Working voltage DC 3.7 V (Lithium battery 2000 mAh) Charging time 6 h to 8 h Standby time More than 8 hours Product size 4.33 in x 2.76 in x 2.0 in (109.98 mm x 70.10 mm x 50.80 mm)