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mPower Electronics 36 Month UNI 321 MP103 Single Gas Detector for H2S, CO or O2
mPower 36 Month UNI 321 Single Gas Detector Model MP103

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Base Price: $136.00

Availability: Usually Ships in 3 to 5 Business Days

Description Technical Specs

mPower 36 Month MP103 UNI 321 Single Gas Detector for H2S, CO or O2

mPower Electronics 36 Month UNI 321 Model MP103 Maintenance Free Gas Monitor for H2S, CO or O2

mPower Electronic's UNI 321 is a disposable, maintenance-free version of the UNI single gas monitor. It detects hydrogen sulfide (H2S), carbon monoxide (CO) or oxygen (O2) in your selection of models for an operating life of either 12 months (MP101), 24 months (MP102) or 36 months (MP103). The detectors have a large LCD providing maximum readability in the field. Six bright red LEDs allow for quick alarm notification. Constructed of strong and durable material, the UNI 321 is designed to be comfortable yet drop-resistant. The UNI 321 detectors can easily be bump tested and calibrated with the CaliCase System.


  • Simple GO, NO-GO!
  • No Maintenance needed for life of instrument (except when used under extreme conditions)
  • Low cost of ownership
  • Large Display
  • Durable Housing
  • Solid stainless-steel Alligator Clip
  • 50% larger single-cell Battery
  • Daily functional Self-Test
  • 50 Event Datalogging
  • Docking Station for calibration and event download
  • UL Classification Class 123, Groups ABCDEFG


  • Size: 3.46 x 2.44 x 1.3 in (88 x 62 x 33 mm) Weight: 4.4 oz (125 g)
  • UL/cUL: Class I, Div 1, Group A, B, C, D; Class II, Div 1, Group E, F, G; Class III, Div 1
  • Temperature rating T4, -20°C ≤ Tamb ≤ +50°C
  • Event logger
  • IP rating: IP-67
  • Large LCD, 30% larger than most
  • Password protection
  • Low, High, TWA & STEL alarms
  • Six bright red flashing LEDs
  • Two-point field calibration
  • H2S, CO and O2 versions available
  • Models: MP103 for 3-year, MP102 for 2-year, and MP101 for 1-year

H2S Hydrogen sulfide 0.1-100ppm
CO Carbon monoxide 1-500ppm
O2 Oxygen 0.1-30.0%

Accessories for this product
mPower UNI MP100T Single Docking Station M001-0089-000 mPower MP300T1 UNI 4-Unit Docking Station M003-0001-000
Base Price: $500.00

Base Price: $1,980.00

mPower MP100T Docking Station for UNI Single Gas Monitor M001-0089-000 mPower MP300T1 Docking Station for UNI Single Gas Monitor M003-0001-000

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