GAOTek H2 Gas Purity Detector

This H2 Gas Purity Detector has a temperature range of -4 oF to 122 oF, response time of ≤8 S and resolution of 1 PPM.




  • Imported High Precision sensor
  • Multi-layer filter
  • Data transfer function

Technical Specifications


Gas Detected H2
Detection principle Electrochemical principles

Measure Range

0 ppm to 1000 ppm/0 ppm to 5000 ppm/0 ppm to 10000 ppm/0 ppm to 40000 ppm
Resolution 1 PPM
Sensor life 2 years to 3 years
Precision 2% FS
Sampling method Built-in stable flow pump, flow range of 0 ML/Min to 500 ML/Min
Modular structure Can detect up to 1 to 4 kinds of gases
Concentration unit ppm, mg/m3, %VOL, %LEL, can be switched by one button
Display 3.5 in (88.9 mm) color display, resolution 320 x 480
Display mode Multiple display modes select-able multi-channel data mode,
multi-curve mode, single channel + single curve mode
Data storage Standard 16 M capacity storage function can save up to 100,000 groups of data.
Can be directly connected to the computer through USB, quickly download stored data, EXCEL format
Wireless transmission (optional) Bluetooth (with printer), ZigBee, built-in DTU wireless module (optional)
Print Built-in printer or external Bluetooth printer (optional with
extra charge)
Operating language Chinese and English
Battery capacity 3800 mA rechargeable
Charging interface USB charging interface, 5 V/2 A standard charger
Filter device Equipped with a multi-layer filter to efficiently filter oil, water
and dust.
Wireless network Bluetooth (with print function), ZigBee, Lora+ (relay DTU),
DTU (optional with extra charge)
Network frequency Lora (470 M), DTU (2.4 G) (optional with extra charge)
Wireless trans. distance Lora (1.6 km), DTU (unlimited) (optional with extra charge)
Response Time ≤8 S
Repeatability ≤±1%
Zero shift ≤±1% (F.S / Year)
Operating temperature -4 oF to 122 oF (-20 °C to 50 °C)
(optional flue gas sampling probe, up to 1112 oF (600 °C), 2192 oF (1200°C)
smoke concentration)
Working humidity 0% RH to 95% RH (no condensation) (high humidity can be
selected with a filter drying device)
Explosion-Proof Exic II CT3, GC
Alarm mode Buzzer, LED, and alarm status prompt on the display, fault
Alarm, pump abnormal alarm, battery low battery alarm, shutdown alarm, fall alarm (optional with extra charge)
Recovery Time ≤10 S
Linearity error ≤±1%
Degree of protection IP 66
Standard accessories Manual, warranty card, power charger, carrying case,
water and oil filter, data cable
Optional accessories Bluetooth printer, pressure sensor, high-temperature rod,
Metal extension rod, Bendable rod, Silicone hose, dry filter device, PC download software
Dimensions 10.62 in x 2.95 in x 1.61 in (270 mm x 75 mm x 41 mm)
Weight 0.88 (400 g)


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