Description
The RKI GP-03 Combustible Gas LEL Single Gas Monitor is an ultra-compact personal gas detector designed for continuous monitoring of combustible gases such as methane (CH₄). Measuring gas concentrations from 0–100% LEL, the GP-03 provides dependable personal protection while weighing only 2.8 oz.
The GP-03 uses a catalytic combustion sensor with diffusion sampling and provides fast response to combustible gas hazards. Gas concentration is continuously displayed on the digital LCD, while audible, visual and vibration alarms alert the user when programmed alarm levels are reached.
Designed for demanding industrial environments, the GP-03 carries an IP67 dust- and water-resistant rating and is approved for use in applicable hazardous locations. Its compact 2.1 × 2.64 × 0.94 in. design allows the detector to be easily clipped to clothing or carried without adding bulky equipment.
The GP-03 also includes onboard data logging for gas readings, alarms, calibration and bump-test history. Data logging intervals are adjustable, providing approximately 5 to 300 hours of stored data depending on the selected interval.
Detector Type: Portable Single Gas LEL Monitor
Gas Detected: Combustible Gas
Measurement Range: 0–100% LEL
Sensor: Catalytic Combustion
Sampling Method: Diffusion
Ingress Protection: IP67
Alarms: Audible, Visual & Vibration
Instrument Weight: 2.8 oz (80 g)
Warranty: 2 Years
Need help selecting a combustible gas detector or calibration equipment?
Call CPS Calibrations at 865-900-8844 or email info@cpscalibrations.com.
- 0–100% LEL Detection: Designed for personal monitoring of combustible gas hazards.
- Catalytic Combustion Sensor: Provides reliable detection of combustible gases including methane (CH₄).
- Diffusion Sampling: Continuously monitors the surrounding atmosphere without an internal pump.
- Ultra-Compact Design: Measures only 2.1 × 2.64 × 0.94 in. and weighs just 2.8 oz.
- Triple Alarm System: Audible buzzer, flashing LEDs and vibration provide clear notification of hazardous conditions.
- Adjustable Alarm Points: First and second gas alarm levels can be adjusted by the user.
- Fast Response: T90 response time of approximately 30 seconds.
- IP67 Protection: Impact-, dust- and water-resistant construction for demanding industrial environments.
- Data Logging: Records gas readings, alarms, alarm trends, calibration history, bump-test history, instrument information and settings.
- Adjustable Logging Intervals: Provides approximately 5 hours at 10-second intervals, 150 hours at 5-minute intervals or 300 hours at 10-minute intervals.
- Automatic Backlight: LCD automatically illuminates during alarm conditions and also supports manual backlighting.
- Peak Hold: Allows users to review peak gas readings.
- Replaceable Sensor: Combustible gas sensor is field replaceable.
- Flexible Battery Options: Operates on two AAA alkaline batteries or compatible rechargeable Ni-MH batteries.
- Hazardous Location Approved: ATEX/IECEx approved and CSA classified for applicable Class I, Division 1 hazardous locations.
- Protective Rubber Boot: Replaceable rubber boot helps protect the detector during everyday field use.
- IrDA Communication: Supports communication with RKI 03 Series data logging and instrument setup software using compatible infrared equipment.
- 2-Year Warranty: RKI specifies a two-year warranty for the GP-03 instrument and original sensor.
| Model | GP-03 |
| Detector Type | Portable Single Gas Monitor |
| Gas Detected | Combustible Gas / LEL |
| Detection Principle | Catalytic Combustion |
| Detection Range | 0–100% LEL |
| Resolution | 1% LEL |
| Default 1st Alarm | 10% LEL |
| Default 2nd Alarm | 50% LEL |
| Over Alarm | 100% LEL |
| Sampling Method | Diffusion |
| Response Time | T90 in Approximately 30 Seconds |
| Accuracy | ±5% of Reading or ±2% LEL, Whichever Is Greater |
| Alarm Methods | Flashing LEDs, Audible Buzzer, Flashing Gas Value & Vibration |
| Display | Digital LCD with Gas Name, Concentration, Operation Icon & Battery Indicator |
| Data Logging | Gas Readings, Alarms, Alarm Trends, Calibration & Bump-Test History, Instrument Information & Settings |
| Logging Capacity | 5 Hours at 10-Second Intervals; 150 Hours at 5-Minute Intervals; 300 Hours at 10-Minute Intervals |
| Battery Options | Two AAA Alkaline Batteries or Ni-MH Battery |
| Continuous Operation | Approximately 35 Hours Alkaline / 30 Hours Ni-MH |
| Ingress Protection | IP67 |
| Safety Rating | ATEX/IECEx Approved; CSA Classified Intrinsically Safe, Class I, Division 1, Groups A, B, C & D |
| Operating Temperature | -4°F to 122°F (-20°C to 50°C) |
| Operating Humidity | Below 90% RH, Non-Condensing |
| Dimensions | 2.1 × 2.64 × 0.94 in. (54 × 67 × 24 mm) |
| Instrument Weight | 2.8 oz (80 g) |
| Standard Accessories | Rubber Protective Boot, Alligator Clip, Alkaline Batteries, Wrist Strap & Data Logging Software |
| Optional Accessories | Calibration Cap, Calibration Kit, Charger Unit, Belt Clip, Calibration Station & Data Logging Download Cable |
| Warranty | 2 Years for Instrument & Original Sensor |
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