The RKI Instruments 72-5544RK is a robust, multi-gas detector engineered 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 is equipped with a powerful long-life pump with a 125-foot range, ensuring reliable sampling even in hard-to-reach areas. The 72-5544RK supports a wide variety of field-proven sensors, including infrared (IR) sensors for CO2, % LEL CH4, and 0-100% volume CH4, as well as PPM/LEL hydrocarbon detection. Its methane elimination switch allows for environmental use, and the security adjustment lockout switch prevents unauthorized changes. With up to 30 hours of continuous operation and compatibility with alkaline or Ni-Cad batteries, this gas detector is built for extended field use. The ergonomic, RFI/EMI/chemical-resistant case ensures durability in harsh conditions.
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 shutoff 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
The RKI Instruments 72-5544RK is ideal for use in confined space entry, wastewater treatment, petrochemical plants, and other industrial settings where multi-gas monitoring is critical for worker safety and environmental compliance.




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