Net Safety M22 Millennium II Dual Channel Transmitter
Starting at $2,165.81

Not in stock. Usually ships in 2-4 weeks [?]

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  • SMART sensor technology
  • -67 to 185°F (-55 to 85°C) temp range
  • Lowest power consumption available
  • Mix and match all sensor types on a single transmitter
  • Full diagnostics with event and datalogging
  • 10.5 to 32.0 VDC (HART: 18 VDC 32 VDC) voltage range
  • Intuitive menu system
  • Simple set-up/calibrations
  • Field selectable gas curves and ranges
  • Long range (2000ft) sensor separation

The Net Safety M22 Millennium II Dual Channel Universal transmitters (formerly branded Net Safety) have been engineered from the ground-up to include the innovative features that managers and operators in the field demand, while providing rock solid day-to-day operation, even in the most extreme conditions. The Millennium II redefines what you expect from a fixed gas detection solution.

The transmitter can be fitted with a wide range of toxic and/or combustible gas sensors. SMART (Self Monitoring Analysis and Reporting Technology) sensors are pre-calibrated and easily connected to the transmitter which recognizes a newly fitted sensor, automatically uploading it's specific configuration profile.

Sensor and transmitter continuously communicate digitally, giving you the confidence of stable, accurate protection with fast response times even over long separation distances.

The Millennium II is approved to international hazardous area safety standards for operation and performance.

English, French, Portuguese or Spanish display languages included. The full text menu makes installation, operation and calibration simple. No manual necessary!

The only full graphic OLED display available, easy to read in all ambient lighting conditions and operates down to -55°C!

Multiple communication protocols allow the M22 to work seamlessly with your new or existing system.

All sensors are engineered to be fast and reliable with field-proven performance in the harshest industrial conditions possible. These include Nano-Enhanced Metal Oxide Semiconductor (NE-MOS) toxic gas sensors that do not "fall asleep" and a full range of fast response Electrochemical toxic gas sensors. For combustible gas detection, poison resistant Catalytic Bead technology with SensorGuard, which greatly prolongs sensor life and Infrared sensor technology utilizing a dual beam design with no mirrors that can become contaminated ("fogged up") or misaligned.


Net Safety CCS-1 Combination Calibration/Rain Shield/Splash Guard Cup
Combination calibration/rain shield/splash guard cup
Net Safety CC-INLINE Calibration Adapter
In-Line Cup Adaptor for gas sensors

Mounting Bracket

Net Safety Universal Duct Mount Assembly
Stainless steel universal duct mount assembly, 1M or 1.5M sampling pipe
Net Safety Gas Sensor/Flame Detector Pipe Mounting Kits
Pipe mounting kit - gas detectors and flame detectors (stainless steel)


Net Safety SC310 Catalytic Bead Combustible Gas Sensor
Millennium II series SMART sensor, Accuracy: ±2% less than 50%, ±5% greater than 50%
Net Safety SC311 Infrared Combustible Gas Sensor
Millennium II series SMART sensor, Accuracy: ±2% less than 50%, ±5% greater than 50%
Net Safety ST3 XChem Toxic Gas Sensors
SMART sensor technology, 2000ft sensor separation range, field selectable gas ranges


Net Safety IPF-001 IP 66/67 Filter
IP 66/67 Filter for SX3 Series sensors


Please consider these optional accessories.

Net Safety SSK Sun Shade Kit
Pipe Mounted Sun shade kit/rain guard - stainless steel
Net Safety Generic Calibration Kit
Generic Calibration Kit for the Millennium M2Basic, M21 and M22
Net Safety Generic Calibration Kit with SS Regulator
Calibration kit with SS regulator for the Millennium M2Basic, M21 and M22
Net Safety CAL-CYL Calibration Gas Cylinders
Calibration Gas Cylinders for the Basic M2B, M21 and M22 Transmitters
Net Safety JB Series Junction Box
Termination box for flame detectors or for remote mounting gas sensors from transmitters

Spare Parts

Net Safety TX-M22 Dual Transmitter
TX-M22 Dual Transmitter replacement, electronics only (enclosure not included)