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Net Safety Millennium Air Particle Monitor (APM)
The Millennium Air Particle Monitor (APM) is the only infrared optical monitor that is certified for use in hazardous areas for constant, reliable monitoring of ambient air for products of combustion such as oil mist, carbon, dust, and ash.
Net Safety Millennium Air Particle Monitor (APM)


Ambient Temperature
-40 °C to 75 °C (-40 °F to 167 °F)
Power Supply
150 mA (3.6 W) at 24 VDC
Measurement Range
0 to 95 % relative humidity, non-condensing
North America
Class I, Division 1, Groups B, C, and D T5
AEx d IIB+H2 T5 (Class I, Zone 1, Groups IIB+H2 T5)
ATEX (-X Model)
0575 IIG Ex d IIB+H2 T5 IP65
–40 °C to +75 °C
IECEx (-X Model)
Ex d IIB+H2 T5 Gb IP65
–40 °C to +75 °C
Aluminum: 1.5 lbs, 0.6 kg, Stainless steel: 4.0 lbs, 1.8 kg
Sensor: 2 years
Electronics: 3 years


  • Explosion-proof, Class I, Division/Zone 1 approved
  • Operating temperature range -40 °C to 75 °C
  • 4–20 mA analog and relay output configurations
  • Remote sensor separation - 600 m (2,000 ft) and a variety of duct mount assemblies available
  • Intuitive menu system, zero in 60 seconds from start to finish
  • Field adjustable sensitivity settings
  • Not affected by high volume air velocity
  • Multi-language, bright scrolling LED display allows operators to fine tune at installation site


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