GAOTek Multi Gas O3 Detector

GAOTek Multi Gas O3 Detector has the most advanced nanometer semiconductor technology, ultra-low power 32-bit microprocessor,24 bit ADC data acquisition chip, outstanding accuracy.3.5 in (88.9 mm) IPS technical grade display with a pixel up to 320 x 480 display.




Technical indicators and gas concentration value perfectly. Three concentration units are available mg/m3.User can combine different sensor,1 to 5 kinds of gas can be detected at the same time, PM 2.5 dust sensor, temperature and humidity sensor and other kind of sensors are available. Up to 100,000 groups of data can be stored, user can view history data on the display and data output is available.



  • Precise 32-bit processor, 24-bit ADC chip
  • High-res 3.5 in (8.9 mm) display, 320 x 480 pixels
  • Versatile units: PPM, %VOL, mg/m3
  • Multi-sensor support, 1 to 5 gases at once
  • Vast data storage, easy history viewing
  • Temp and humidity detection available
  • Five operation modes, strong pump included
  • Safety features: over-voltage, calibration, multilingual interface
  • Adaptable to harsh environments, dust-proof


Technical Specifications

Scalable Gas Sensors User can customize 1-5 gas sensors in any combination (Refer to sensor parameters)
Dust Sensor Laser dust sensor (Optional sizes: 0.3 um, 0.5 um, 1.0 um, 2.5 um, 10 um)
Temperature Detection Range -40 °F to 248°F (-40 °C to 120 °C)
Humidity Detection Range 0% RH to 100% RH
Detection Pattern Pumping with a built-in high-power pump allowing the device to work under tiny negative pressure conditions; adjustable flow rate
Detection Accuracy ±3% of Full Scale (F.S)
Reaction Time (T90) ≤20 seconds
Linearity Error ≤±1% F.S
Zero Drift ≤±1% (F.S/Year)
Recovery Time ≤20 seconds
Detection Modes Real-time detection mode and timing detection mode can be switched freely
Storage Pattern Automatically saving and manually saving is available; Up to 100,000 group data; user can view history data on the display
Printing Pattern Micro printer is optional; user can set
Explosion-Proof Sign Exdill CT4 (1A)
IP Rating IP66
Power 4000 mAh high-capacity polymer rechargeable battery
Shell Material ABS+PC
Working Temperature -22 °F to 140 °F (-30 °C to 60 °C)
Humidity ≤95% RH, Non-condensing
Working Pressure -4.3 PSI to 14 PSI (-30 kPa to 100 kPa)
Accessories Dust filter, Case, User manual, Certification, USB charger + Data cable, Calibration cover
Dimensions 8.66 in x 3.46 in x 2.17 in (220 mm x 88 mm x 55 mm)
Weight 1.1 lb (500 g) (net weight)


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