Starting at $1,670.00
  • Usually ships in 4-6 weeks



  • Electrochemical, infrared or catalytic bead sensors
  • Wire powered (3-Wire), 12 to 35 VDC operating voltage
  • -40 to 54°C operating temperature range
  • 3 Push-button interface (ADD, MENU, SUB)
  • 2 Individually configurable alarms
  • 2 Optional fully programmable alarm relays (dry contacts)
  • Output options: 4-20mA (3-wire) analog, RS-485 Modbus, both standard


The RKI Instruments T3A gas transmitter is a versatile assembly that uses an electrochemical, infrared, catalytic bead senso Magnetic switches allow for non-intrusive calibration while in the field as well as full system settings and diagnostics.

Applications for the T3A include:

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