RKI Instruments Equipment

AirLink 7543 Wireless Fixed Controllers

RKI Instruments

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Instrumentation Equipment

AirLink 7543 Wireless Fixed Controllers


The RKI AirLink 7543 six channel gas monitor with 3 dry contact relays can monitor up to 6 individual Wireless gas detectors and transmitters. RS-485 Modbus output allows for data communication to a PLC or other system monitoring device. Available with an optional WirelessHART® module that allows the received sensor readings to be viewable on a WirelessHART® network.

The AirLink 7543 Gas Monitor represents the latest leading edge wireless technology in fixed gas detection today.


  • 6 Channel controller accepts up to 6 wireless
  • Radio options: 900 MHz or 2.4 GHz radio standard
  • 3 Programmable alarm set-points
  • 3 Dry-contact alarm relays
  • Status indicator for fault conditions: Amber LED
    indicator for system faults
  • Graphical LCD with LED backlight
  • 12 to 35 VDC operating voltage with an optional AC power supply
  • Operating temperature range of -40ºC to +70ºC
  • NEMA 4X standard fiberglass enclosure with clear lid
  • Output options: RS-485 Modbus or optional WirelessHART®
  • 1-Year limited hardware warranty


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W166 N11965 Fond du Lac Ave.
Germantown, WI 53022