RKI's 03 Series single gas clip-on personal monitors comes in four versions including the GP-03 for combustible hydrocarbons/LEL (0–100%, 1% increments), CO-03 for carbon monoxide/CO (0–500 ppm, 1 ppm), HS-03 for hydrogen sulfide/H2S (0–100 ppm, 0.5 ppm), and the OX-03 for oxygen deficiency/O2 (0 – 40%vol., 0.1% vol.).

Features include peak hold, STEL, and TWA; audible, visual, and vibration alarms; an automatic backlight. Data logs 5–300 hours with an adjustable interval. Replacement sensors are inexpensive and field replaceable. Operates for 3,000 hours on alkaline (GP-03 operates 30 or 35 hours on Ni-MH or alkaline respectively) with a low battery alarm.

The 03 Series is intrinsically safe (ATEX & CSA). pocket sized (2.1" W by 2.6" H by 0.9" D), weighs only 2.8 oz, includes a replaceable rubber boot, is impact/dust/water resistant (IP-67), and comes with a two (H2S & CO) or three (LEL & O2) year warranty.

CO-03 Features

• Gas Detected: Carbon Monoxide (CO)
• Detection Principle: Electrochemical
• Detection Range (Increments): 0–500 ppm (1 ppm)
• Alarm Set Points (ppm): 1st 25, 2nd 50, TWA 25, STEL 200, Over 500
• Gas Smpling: Diffusion
• Response Time: T90 in 30 seconds
• Accuracy: ± 5% of reading or ± 5 ppm CO
• 3 Year Warranty

HS-03 Features

• Gas Detected: Hydrogen Sulfide (H2S)
• Detection Principle: Electrochemical
• Detection Range (Increments): 0–100 ppm (0.5 ppm)
• Alarm Set Points (ppm): 1st 5, 2nd 30, TWA 1, STEL 5, Over 100
• Gas Smpling: Diffusion
• Response Time: T90 in 30 seconds
• Accuracy: ± 5% of reading or ± 2 ppm H2S
• 3 Year Warranty

OX-03 Features

• Gas Detected: Oxygen (O2)
• Detection Principle: Galvanic Cell
• Detection Range (Increments): 0 – 40%vol. (0.1% vol.)
• Alarm Set Points (vol.): Low 19.5%, High 23.5%, Over 40.0%
• Gas Smpling: Diffusion
• Response Time: T90 in 20 seconds
  (Alarms within 5 seconds when exposed to 12% O2)
• Accuracy: ± 0.5% O2
• 2 Year Warranty

GP-03 Features

• Gas Detected: Combustible Gas
• Detection Principle: Catalytic Combustion
• Detection Range (Increments): 0–100% LEL (1% LEL increments)
• Alarm Set Points (LEL): Low 10%, High 50%, Over 100%
• Gas Smpling: Diffusion
• Response Time: T90 in 30 seconds
• Accuracy: ± 0.5% of reading or ± 2% LEL
• 2 Year Warranty

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