RKI 03 Series Single Gas Detector — Major Safety Skip to content

RKI 03 Series Single Gas Detector

by RKI
SKU 73-0060
Sold out
Original price $305.00
Original price $305.00 - Original price $345.00
Original price $305.00
Current price $280.00
$280.00 - $320.00
Current price $280.00

This item has been discontinued by RKI. The replacement, the 04 Series. Please also consider the GFG Micro IV single gas detectors.

The RKI 03 series is the go to single gas detector for repeated use applications. You can replace the battery (which provides nearly 3 years of run time) and the sensors.

And the best part is that the sensors are inexpensive and easily field replaceable. Not to mention they are interchangeable with RKI's GX-2009 and GX-2012 4-gas monitors.

The 03 series is also packed full of features - impact, dust, and water resistant with an IP-67 rating. And unlike most other single gas detectors, this one comes in a combustible gas/LEL version.


  • 4 Gases to choose from: LEL, CO, H2S, or O2 - Combustibles, Carbon Monoxide, Hydrogen Sulfide or Oxygen
  • Operates 3,000 hrs. on alkaline batteries (30 hours for LEL version)
  • 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)
  • Audible / visual / vibration alarms
  • Automatic backlight during alarm
  • Peak Hold, STEL & TWA
  • Low battery alarm
  • Intrinsically safe
  • 2 year warranty (3 year on H2S and CO)
  • Includes attached alligator clip



rki-03-series-datasheet    rki-03-series-manual