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Wireless Toxic Gas Sensor & Oxygen Deficiency Detector

The Ultra1000 Wireless is a battery operated detector to monitor toxic gases in ambient air. The interface and the Radio Transceiver are housed in a flame proof instrument enclosure. The detectors monitors a variety of toxic gases in the parts per million (ppm) range, including: ammonia, carbon monoxide, chlorine, chlorine dioxide, hydrogen, hydrogen chloride, hydrogen sulfide, nitric oxide, nitrogen dioxide, oxygen deficiency, and sulfur dioxide.

The unit is self identifiable to the network of other Pem-Tech gas detectors and wireless controller / monitor. The unit communicates with the controller by transmitting complete data packet including the live gas concentration reading and the sensor diagnostic data such as low battery, sensor fault, and calibration mode.

View Data Sheet   Technical Specifications


  • Drilling Rigs
  • Offshore Platforms
  • Petrochemical Industry
  • Chemical Storage
  • Water & Wastewater Treatment
  • Tank Farms
  • Refineries

Key Features

  • Auto detect network; sensor comes on-line automatically
  • Easy User friendly setup
  • Long battery life
  • Internal Lithium battery or Solar Panel for continuous operation
  • Extended Range with directional antenna
  • Available operating frequency: 900 MHz & 2.4 GHz
  • Communicates to a range of wireless controllers and gateways

Technical Specifications

Sensor Type

Electrochemical Cell

Measuring Range

Ammonia (NH3) 0-50 ppm
Carbon Monoxide (CO) 0-100, 0-1000 ppm
Chlorine (CL2) 0-10 ppm
Chlorine Dioxide (CLO2) 0-50 ppm
Hydrogen Sulfide (H2S) 0-100, 0-500 ppm
Hydrogen (H2) 0-200 ppm
Nitrogen Dioxide (NO2) 0-20 ppm
Nitric Oxide (NO) 0-100 ppm
Oxygen Deficiency (O2) 0-25 %(volume)
Sulfur Dioxide (SO2) 0-100 ppm
* Contact factory for other gas sensors

Wireless Frequency

License free ISM Band
900 MHz (FHSS)
2.4 GHz (DSSS) International

Operating Range (Line of Sight)

900 MHz : 5 Km
2.4 GHz 2 : 2 Km
Greater distance can be achieved using directional antenna

Power Supply

Disposable Lithium battery 3.6 volts
Optional Rechargeable battery with solar panel for continuous operation.
Solar Panel : 5 Watt 6 volts (small profile)

Electrical Classifications

Explosion Proof Enclosure
ATEX: II 2G Ex d IIC T6 (Tamb= -40°C to +65°C)
CSA: Class I, Div 1 & 2, Groups B, C & D



EN 60079-1:2014 II 2G db IIC T6 Gb 
(Only with internal Lithium battery)

Operating Temperature Range

H2S, H2, SO2 & CO:

-40°F to +149°F (-40°C to +65°C) (intermittent)

All others: -30°F to +131°F (-34°C to +55°C)

Humidity Range

5% - 95% RH (non condensing)

Storage Temperature

Electronics Interface Module:
  -40°F to +185°F (-40°C to +85°C)

Sensor Head Assembly:
  32°F to +68°F (0°C to +20°C) (Cell)


Height: 7.4 inches (188 mm) - Excluding antenna
Width: 6.2 inches (159 mm)
Depth: 4.9 inches (125 mm)

Ingress Protection


Display and Indicators

2 x 8 character LCD display

Operating Time

Continuous operation with solar panel & Rechargeable battery.
11 months : Disposable Lithium Battery (normal operation)


Dust or Splash guard, Flow Adapter with tube fittings, Sensor Duct Mount Kit, Pole Mount brackets.


Two year Electronics
One year Sensor head assembly (cell)