RKI Instruments

RKI Explosion Proof M2A-XL IR CO2 Transmitter w/J-Box, UL 65-2660XL

Ships in 6 - 8 weeks


The RKI Explosion Proof UL version M2A-XL Infrared Carbon Dioxide Transmitter with j-box provides an alternate housing, which is slightly taller, wider and deeper, but the mounting holes, electronics and operation are the same as the original M2A housing. The slightly larger enclosure has more room inside for additional wiring. Since this housing is deeper than the original M2A, longer standoffs are required inside to properly bring the display up to the transmitter's window. IR CO2 ranges of 0-5,000 ppm, 0-5%, 0-50%, or 0-100% transmitter.

Please call Customer Service at 800-829-9580 if you have questions in choosing the correct product.

The M2A-XL sensor/transmitters can can operate as an independent, stand-alone monitor or connect to virtually any controller, PLC, or DCS and are designed to work with the RKI Beacon 110, Beacon 200, Beacon 410, or Beacon 800 Controllers.

Applications: Petrochemical plants, Refineries, Water & wastewater treatment plants, Pulp & paper mills, Manufacturing facilities, Automotive, Semiconductor plants, Chemical plants

Key Features:

  • Operates with or without a controller
  • Direct digital readout with OLED cold temperature display
  • Choice of 0-5,000 ppm, 0-5%, 0-50%, or 0-100%
  • 4-20 mA & digital Modbus outputs standard
  • 2 fully programmable alarm relays & fail relay
  • Non-intrusive calibration via magnetic wand
  • Explosion proof construction
  • Patented water repellent sensor cover
  • User friendly setup, push buttons & OLED menus
  • Resolution: 20 ppm / 0.1 percent volume
  • Lower Detectable Limit (LDL): 2 percent of full scale
  • Response Time: 30 seconds
  • Life Expectancy: 5+ years with normal service

Specification Sheet:


Part Numbers:
65-2660RK-02 - IR Carbon Dioxide (CO2) 0-5,000 ppm
65-2660RK-03 - IR Carbon Dioxide (CO2) 0-5%
65-2660RK-05 - IR Carbon Dioxide (CO2) 0-50%
65-2660RK-10 - IR Carbon Dioxide (CO2) 0-100%

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Additional Information

10.00 LBS
10.00 (in)
8.00 (in)
13.50 (in)
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