RKI Instruments 03 Series single-gas clip-on monitor (CO, H₂S, O₂ or LEL)
Pricing depends on specification, quantity and delivery location. Send your requirement and we reply with a costed quotation within 24 hours.
Quick overview
- Type: Gas & flame detection
- Hazardous area: Hazardous-area rated / option
- Genuine productsSourced from the manufacturer or authorised channels
- Delivery across BangladeshDhaka, Chattogram and all industrial zones
- After-sales supportInstallation guidance and warranty handling
- Reply within 24 hoursCall +880 1713 552466 or email hello@argonmark.com
Specifications
| General | |
|---|---|
| Part no. | BD-1454 |
| Category | Oil & Gas Instruments |
| Group | Instrumentation & Control |
| Brand | RKI Instruments |
| Model | CO-03 / HS-03 / OX-03 / GP-03 |
| Technical | |
| Type | Gas & flame detection |
| Hazardous area | Hazardous-area rated / option |
Datasheet
Technical features
| Pocket size (54 × 67 × 24 mm, 80 g) with replaceable rubber boot | |
| Data logging 5 to 300 hours with adjustable intervals; records alarms, readings, calibration and bump history | |
| Peak hold, STEL and TWA; low battery alarm | |
| Automatic backlight during alarm | |
| 3-year warranty (H₂S, CO), 2-year (LEL, O₂) |
Applications
| Personal protection in refineries, petrochemical and chemical plants, mining, water treatment, utilities and fire services |
Key specifications
| Gases | CO 0–500 ppm, H₂S 0–100 ppm, O₂ 0–40% vol, combustible 0–100% LEL |
|---|---|
| Accuracy | ±5% of reading or ±5 ppm (CO), ±2 ppm (H₂S); ±0.5% (O₂); ±2% LEL |
| Battery | 2 × AAA alkaline: > 3,000 h (GP-03: 35 h alkaline / 30 h Ni-MH) |
| Alarms | Audible, visual, vibration; 1st, 2nd, over, STEL, TWA |
| Protection | IP67 |
| Approvals | ATEX / IECEx; CSA C/US Class I Div 1 Groups A–D |
Specification
| Sampling | Diffusion |
|---|---|
| Alarm types | Gas: 1st, 2nd (adjustable), over, STEL, TWA; trouble: sensor, low battery, circuit, calibration range |
| Data logging | 10 s interval = 5 h; 5 min = 150 h; 10 min = 300 h |
| Battery | 2 × AAA alkaline (> 3,000 h CO/H₂S/O₂); GP-03 alkaline 35 h or Ni-MH 30 h |
| Display | LCD with gas name and concentration, auto backlight in alarm |
| Operating conditions | −20 to +50 °C; below 90% RH non-condensing |
| Enclosure | IP67 dust and water resistant |
| Size / weight | 54 × 67 × 24 mm; 80 g |
| Safety rating | ATEX/IECEx; CSA C/US intrinsically safe Class I Div 1 Groups A–D |
Models
| Model | Gas | Principle | Range (increment) | Default alarms | Response | Accuracy |
|---|---|---|---|---|---|---|
| CO-03 | Carbon monoxide | Electrochemical | 0–500 ppm (1 ppm) | 25 / 50 ppm; TWA 25, STEL 200, over 500 | T90 30 s | ±5% of reading or ±5 ppm |
| HS-03 | Hydrogen sulfide | Electrochemical | 0–100 ppm (0.5 ppm) | 10 / 30 ppm; TWA 1.0, STEL 5.0, over 100 | T90 30 s | ±5% of reading or ±2 ppm |
| OX-03 | Oxygen | Galvanic cell | 0–40% vol (0.1%) | Low 19.5%, high 23.5%, over 40% | T90 20 s | ±0.5% |
| GP-03 | Combustible gas | Catalytic combustion | 0–100% LEL (1%) | 10 / 50% LEL; over 100% | — | ±5% of reading or ±2% LEL |
Notes
| Data from the manufacturer's published datasheet. Confirm model, range, materials and approvals with Argonmark before ordering. |
Photo: courtesy of RKI Instruments, used with permission (source) — background removed by Argonmark. All photo credits
Description
The RKI 03 Series is a pocket-size clip-on single-gas monitor available for carbon monoxide (CO-03), hydrogen sulfide (HS-03), oxygen (OX-03) or combustible gases (GP-03). The toxic and oxygen versions run over 3,000 hours on two AAA alkaline cells, and every model gives audible, visual and vibrating alarms with peak hold, STEL and TWA.
It weighs 80 g, is IP67 rated, logs readings and calibration history for up to 300 hours, and is intrinsically safe to ATEX/IECEx and CSA Class I Div 1.
Argonmark Ltd supplies RKI Instruments instruments across Bangladesh — Dhaka, Chattogram, Gazipur, Narayanganj and the gas fields, refineries, terminals and power plants beyond. Send us the model, range, process connection, output and any hazardous-area requirement, and we will confirm the right configuration, lead time and price.
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