GAOTek Gas Detector for CO/H2S/O2/LEL detects concentration of four gases and supports two instant alarms with audio/visual and vibratory indicators.

Key Features

  • Astigmatic design is applied to rugged surroundings;
  • Continuously gas concentration and composition LCD real-time display;
  • Rechargeable lithium battery (continuous working period can be 16~18 hours
  • Concentration units ppm and mg/m3 can be switched
  • Built-in vibration alarm which is applied for noisy environment;
  • Two stage alarm threshold: the low alarm and high alarm point can be adjusted based on actual needs;
  • Simple automatic calibration program and plug-in replaceable sensor;
  • Fully functional self-testing: sensor, integrity of battery and circuit, acoustic & visual & vibration
    three-stage alarm;
  • Small figure and light weight;
  • Password protection capability: only the authorized user can modify the preset parameter.

Technical Specifications

Operating & Storage Environment Temperature: -20°C~55°C (-4F~122F)

Humidity: 5%-95% (Relative humidity non-condensing)

Pressure: 95~110kPa

Sampling method Diffusion type
Detecting Range CO: 0~1000ppm

H2S:0~100 PPM

O2: 0~30%vol

Combustible Explosive Gas (Ex / LEL / CH4): 0~100%LEL

Sensor O2 /H2S / CO: plug-in electrochemical sensor

Combustible gas (LEL): plug-in catalytic combustion sensor

Alarm Type low & high alarm, multiple gas alarm, sensor alarm, battery low alarm,
prompt tone, automatic shutdown alarm
Resolution 0.1%VOL (O2), 1ppm (CO), 0.1ppm (H2S), 1%LEL (EX)
Accuracy 3% F.S
Response time 10s
Repeatability 1%
Zero drift 1%
Display Alphanumeric large LCD displays the real time gas concentration and alarm stage
Backlight Automatically activated when working in poor lighting environment or the
alarm sounding or the button is knobbed down.
Self-checking Function Self-checking Battery power, display, sensor, hardware failure
Explosion-proof EXiaIICT4
Protection grade IP65
Power Supply Rechargeable lithium battery
Weight  8.31lbs (211g)
Dimensions 4.96in x 2.60in x 1.30in  (126mm*66mm*33mm)


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