GAOTek HF Gas Concentration Detector

This HF Gas Concentration Detector has temperature of -4 °F to 122 °F, humidity 0% RH to 95% RH, precision of 5% F.S and recovery time less than 10 s.




  • LCD dot matrix display, the gas type, unit, concentration, local time, can be showed on the screen
  • Support Chinese and English operation, easy to shift
  • The gas concentration unit PPM and mg/m3 can be shifted quickly
  • Explosion-proof certification, explosion-proof grade: ExiaⅡCT4
  • Monitor the HF gas concentration in environment and enclosed space and alarm
  • With Self-calibration and zero calibration functions, high precision HF gas detector
  • One press to restore factory setting, free from the bother of miss-operation
  • With temperature and pressure compensation, to realize gas concentration compensation under conditions of different temperatures or pressures
  • Two stages alarm with sound and light, alarm point is settable
  • Rechargeable lithium polymer battery of large capacity


Technical Specifications

Gas Detected HF, hydrogen fluoride
Detection principle Electrochemistry, use imported high precision HF gas sensor
Sampling Method Pumping suction, flow rate can up to 1 L/min, ten grades of pumping suction for selection.
Measure Range 0 ppm to 10ppm,0 ppm to 20ppm,0 ppm to 50ppm,0 ppm to 100 ppm
Resolution 0.01 ppm, 0.1 ppm, 1 ppm
Precision ≤±5% F.S.
Signal Output              High-speed data transmission by USB, available for data downloading and

printing (optional function)

Response Time ≤10 S
Repeatability ≤±1%
Zero shift ≤±1% (F.S/year)
Operating language Chinese/English
Temperature -4 °F to 122 °F (-20 ℃ to 50 ℃)
Explosion-Proof ExiaⅡCT4
Alarm mode Sound, light, vibration
Recovery Time ≤10 S
Linearity error ≤±1%
Display LCD dot matrix display
Gas unit ppm, mg/m3
Humidity 0% RH to 95% RH
Degree of protection IP 66
Operating time 12 h
Dimensions 8.07 in x 2.952in x 1.26 in (205 mm x 75 mm x 32 mm)
Weight 0.661 lb (300 g)


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