• 900 MHz or 2.4 GHz radio frequencies
  • 12 to 35VDC operating voltage
  • Optional AC power supply
  • -40° to 70°C (-40° to 158°F) operating temperature
  • Graphical LCD with LED backlight
  • 3 Programmable alarm set-points
  • 3 Dry-contact alarm relays


The RKI Instruments AirLink 7543 wireless controller is a 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.

Example Applications:

  • Petrochemical plants
  • Refineries
  • Water & wastewater treatment plants
  • Pulp & paper mills
  • Manufacturing facilities
  • Automotive
  • Semiconductor plants
  • Chemical plants