The RKI Instruments 72-5503RK is a robust, multi-gas detector designed for demanding industrial applications. With the ability to simultaneously detect up to six different gases, this instrument provides comprehensive monitoring in a single, portable unit. It supports a wide variety of field-proven gas sensors, including infrared (IR) sensors for carbon dioxide (CO2), methane (CH4) in % LEL and 0-100% volume ranges, and PPM/LEL hydrocarbon detection. The powerful long-life pump offers a 125-foot range, ensuring reliable sampling even in remote or confined spaces.
Key Features & Highlights
- Simultaneous detection of up to 6 different gases
- Wide variety of field proven gas sensors available
- IR sensors for CO2, % LEL CH4, and 0-100% volume CH4
- PPM / LEL hydrocarbon detection
- Powerful long-life pump with 125-foot range
- Low flow pump shut off and alarm
- Methane elimination switch for environmental use
- Security adjustment lockout switch
- Up to 30 hours of continuous operation
- Alkaline or Ni-Cad battery capability
- Ergonomic RFI/EMI/chemical resistant case
Applications
This gas detector is ideal for environmental monitoring, industrial hygiene, confined space entry, and safety applications where multiple gas hazards may be present. Its robust design and long battery life make it suitable for extended field operations.





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