Part Number: 67-8022-200

B-Guard Millennium CO2

CO2 detection is often known for its reliability as it generally utilises Infra-Red technology. The B-Guard Millennium offers another level of this reliability with dual wavelength detection.

List of Benefits

  • Infrared sensing technology
  • Virtually maintenance free
  • Low cost of ownership, over five years operating life
  • Immune to poisoning and etching
  • Designed for harsh environments
  • Explosion proof
  • Compact & lightweight
  • Fast response time
  • Smart calibration
  • Self-compensating optical bench
  • No moving parts
  • Heated optical chamber
  • Low power consumption
  • Operates in constant hydrocarbon background
  • Operates in anaerobic atmospheres
  • Fault indications for all failure states
  • Routine calibrations are not required
  • 4 to 20 mA output
  • Many ranges available
  • Can be coupled with a transmitter for network applications
  • RS-485 communication link available
  • Digital display option available


GTA Millennium infrared carbon dioxide detector is a single source dual wavelength instrument. The sensing and reference elements are self-compensating for optical integrity and other signal inhibitors. The industry standard 4-20mA analog output provides complete remote alarm, fault and calibration signals.


The GasTech Millenium CO2 detectors are designed to be used where rugged, explosion proof, ultra reliable device is required.

  • Gas Storage
  • Water Industry
  • Injection Oil Recovery
  • Enivironmental Chambers
  • Industrial Process Control
  • Laboratories
  • Food Processing/Packaging
  • Breweries/Wineries
  • Greenhouses
  • HVAC (DCV, Energy Management)
  • Bottling Plants
  • Engine Test Cells
SpecificationDetail Description
Detectable GasesCarbon Dioxide
Operating Voltage18-36 VDC
Power Consumption4 Watts at 24 VDC
Analog Output4 – 20 mA (sourced)
Range0 - 5% Volume Standard Range Alternate ranges are available
Enclosure Construction Copper Free non-corrosive aluminum, nickel-plated, Stainless Steel
Mounting3/4" NPT
Ingress ProtectionIP66
Accuracy± 3% 0 to 50% full scale, ± 5% 51 to 100% full scale
Response Time(with standard weather protection) T50 < 3 seconds, T90 < 5 seconds
Temperature Rating- 40C° to + 70°C
Humidity0-99% (non-condensing)
ClassificationClass 1, Div. 1, Groups B, C & D
EMI Protection Operates correctly with 5 Watt walkie talkie keyed at 3 feet
WeightApprox. 2 lbs. (0.9 kg.)

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