• Detects four gases: LEL, CO, H2S, or O2.
• Operates for 3,000 hours on alkaline batteries (16 hours for LEL version).
• Compact size: 1.4” x 4.1” x 0.8”.
• Lightweight at 3.5 ounces.
• Equipped with audible, visual, and vibration alarms.
• Automatic backlight during alarms.
• Includes Peak Hold, STEL, and TWA functions.
• Low battery alarm feature.
• Impact and water-resistant design.
• Intrinsically safe, CSA, C/US classified.
• Two-year warranty.

• Hazardous material handling.
• Mining operations.
• Refineries and petrochemical industries.
• Water and wastewater treatment.
• Pharmaceuticals.
• Utilities.
• Chemical plants.
• Fire services.

The 01 Series single gas clip-on personal monitors are designed for personal protection in hazardous areas. Models include GP-01, OX-01, CO-01, and HS-01, each targeting specific gases such as combustible hydrocarbons, oxygen deficiency, hydrogen sulfide, or carbon monoxide. These monitors are microprocessor-controlled for reliability and advanced capabilities, offering continuous operation for at least 3,000 hours on two AAA alkaline batteries, except for the GP-01 model which operates for 16 hours. They feature user-adjustable alarms and are equipped with visual, audible, and vibration alerts. Sensors are cost-effective, easily replaceable, and compatible with other RKI models.

The 01 Series is classified as intrinsically safe by CSA for use in Class I, Division 1, Groups A, B, C, and D atmospheres, ensuring safety in hazardous locations.

• Detection principles vary by model: Galvanic cell, Electrochemical, Catalytic combustion.
• Detection ranges and alarm set points are specific to each gas type.
• Response time is T90 in 20-30 seconds, with alarms triggering within 5 seconds for certain conditions.
• Accuracy varies by gas type, with specific tolerances outlined.
• Power options include alkaline dry cells and optional Ni-Cad battery packs for the GP-01.
• Operating temperature range: -4°F to 122°F (-20°C to 50°C).
• Standard accessories include protective boots, clips, batteries, and wrist straps.
• Optional accessories include calibration kits and chargers.

Various configurations are available, including options with alkaline or Ni-Cad batteries, and different clip types. For more details, visit the RKI Instruments website or contact their support.