GP-03 Combustible Single Gas Monitor
  • GP-03 Combustible Single Gas Monitor
  • GP-03 Combustible Single Gas Monitor

GP-03 Combustible Single Gas Monitor

  • Operates 35 or 30 hrs on alkaline / Ni-MH
  • Pocket size 2.1”(W) x 2.6”(H) x 0.9”(D)
  • Light weight 2.8 ounces
  • Impact, dust, and water resistant (IP-67)
  • Replaceable rubber boot
  • Data log 5 to 300 hours with adjustable intervals
  • Audible / visual / vibration alarms
  • Automatic backlight
  • Peak Hold, STEL & TWA
  • Low battery alarm
  • Intrinsically safe, ATEX, CSA
  • 2 Year warranty


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30 Days Money Back & One Year Warranty


Built-in Privacy & Security Protection

Individuals need personal protection in hazardous areas at all times without adding extra bulky equipment, and the GP-03 can provide that kind of protection at an affordable price. The GP-03 is a personal single gas monitor designed for protection from exposure to combustible hydrocarbons.

The GP-03 operates for 35 hours on alkaline and 30 hours on rechargeable Ni-MH. The GP-03 model has 2 preset alarms that are user adjustable. It is also equipped with visual, audible, and vibration alarms as standard. The replacement sensor is inexpensive, easily field replaceable, and is interchangeable with other popular RKI instruments like the GX-2009 and GX-2012. The LEL sensor has a life expectancy of over 2 years.

The GP-03 is impact, dust, and water resistant with an IP-67 rating. The GP-03 is safe for use in hazardous locations, classified as intrinsically safe ATEX/IECEx and by CSA to U.S. and Canadian standards for Class I, Division 1, Groups A, B, C, and D atmospheres.


Model Name GP-03
Gas Detected Combustible gas
Detection Principle Catalytic combustion
Detection Range
0 – 100% LEL
(1% LEL increments)
Alarm Set Points 1st 10% LEL
2nd 50% LEL
Over 100% LEL
Alarm Types Gas alarms: 1st and 2nd (user adjustable), OVER alarm, STEL and TWA
Trouble alarms: Sensor connection, low battery circuit failure, and calibration range error
Alarm Methods Gas alarm: Flashing LED’s, intermittent buzzer, flashing gas value, and vibration
Trouble alarm: Flashing LED’s, intermittent buzzer, and display of error message
STEL & TWA alarms: Flashing LED’s, intermittent buzzer, flashing gas value, and vibration
Gas Sampling Diffusion
Response Time T90 in 30 seconds
(which ever is greater)
± 5% of reading or ± 2%
Data Logging 10 second intervals = 5 hours, 5 minute intervals = 150 hours, 10 minute intervals = 300 hours
Instrument records alarms, alarm trends, gas readings, calibration & bump test history, instrument information and settings.
Battery Options Alkaline dry cell (2-AAA size) Ni-MH battery
Continuous Operation Alkaline: 35 hours
Ni-MH: 30 hours
Safety Rating ATEX/IECEx approved. CSA classified, “C/US”, as intrinsically safe, Class I, Division 1, Groups A, B, C, D
Enclosure Dust and water resistant with IP-67 rating
Dimensions & Weight 2.1” W x 2.64” H x 0.94” D, (54 x 67 x 24 mm); 2.8 ounces (80 g)
Display Digital LCD, gas name & concentration, auto backlighting during alarm, operation icon, battery icon
Operating Temp. & Humidity -4°F ~ 122°F (-20°C ~ 50°C);
Humidity below 90% RH (non-condensing)
Standard Accessories • Rubber protective boot • Alligator clip • Data logging software
• Alkaline batteries • Wrist strap
Optional Accessories • Calibration cap • Charger unit • Wrist strap • Calibration station
• Calibration kit • Belt clip • Data logging download cable
Special Functions • Manual backlight for LCD (automatically lit during alarm)
• Peak hold, STEL & TWA
Warranty 2 Year warranty
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