AimSafety PM400-IR Multi-Gas Monitor with Infrared LEL Sensor (O2/H2S/CO/LEL)

Price: $880.00


AimSafety PM400-IR Multi-Gas Monitor with Infrared LEL Sensor (O2/H2S/CO/LEL)

Advanced, Easy-to-use, 4-Gas Monitor For Worker Protection in Hazardous Environments

The innovative new AimSafety PM400 4-gas portable monitor brings enhanced convenience andflexibility to gas detection in hazardous environments. The ergonomic PM400 diffusion gas monitor simultaneously detects up to four gases, including hydrogen sulfide (H2S), carbon monoxide (CO), oxygen (O2) and combustibles (LEL). AimSafety’s PM400 is easy to use and delivers continuous visibility of gas concentrations for faster, more informed decisions that help protect workers and operational assets which can increase revenue and productivity.

The PM400 LCD display provides real-time gas concentrations and allows plant managers or workers to set high and low alarm set-points for each sensor, and STEL, and TWA alarm set-points for toxic gases. The PM400’s audible, visual and vibrating alarms alert the user of unsafe gas concentrations. The PM400 IR will operate continuously for up to 60 days on a single battery charge. Standard sensors include: Carbon Monoxide, Hydrogen Sulfide, Oxygen, and either Catalytic Bead or Infrared for combustible gases (LEL).

Key Features:

  • Easy-to-read LCD display
  • Single button operation
  • Rugged, high visual housing
  • IP67 dust tight & water resistant
  • 60-day continuous runtime (IR version)
  • IR Sensor is immune to poisoning
  • IR sensor use in inert (Low O2) environments


Gas type LEL O2 CO H2S
Detection method Diffusion
Measurement type Infrared Electrochemical Electrochemical Electrochemical
Range 0-100 %LEL 0-30 % by Volume 0-500 ppm 0-100 ppm
Sensor life > 5 years 2 years > 2 years > 2 years
Resolution 1%LEL 0.1% by Volume 1 PPM 1 PPM
Menu navigation Single button ([Function] key)
Display Backlit digital LCD display
Real-time readings of gas concentrations
Battery status
Alarm notifications
Alarm display LCD Alarm Icon display, LCD Backlight
Indicator LED
Audible: 90 dB at 4 in. (10 cm)
Alarm level settings User Selectable via PM Link and PC Software or Bump Test-Calibration Station
Event & data logging Two months - Continuous at 1 - minute intervals, 24 hours a day, 7 - days a week
Mount type Clip
Operating Temperature -4°F to 122°F (-20°C to 50°C)
Operating Humidity 10 to 95% RH (Non-condensing)
Battery Type Rechargeable 3.7V Li-ion
Battery Duration 60 days
Case material Polycarbonate and rubber
Size 4.6" (L) x 2.4" (W) x 1.6" (H) (11.8 cm x 6 cm x 4 cm)
Weight 8.5 oz. (240 g.)
Ingress rating IP67 dust tight & water resistant


  • (1) AimSafety PM400-IR Multi-Gas Monitor with Infrared LEL Sensor (O2/H2S/CO/LEL)


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