Starting at $6,091.00
  • Usually ships in 13-14 weeks



  • Selectable from 0-1% up to 90–100% measurement ranges
  • ±2% accuracy
  • Two 4–20 mA outputs
  • Two alarm relays for concentration
  • 1/8in bulkhead gas fittings
  • MODBUS RTU over RS485 protocol
  • IP55 rated housing


The Michell Instruments XTP501 oxygen analyzer is a linear and stable thermo-paramagnetic analyzer for measurement of oxygen in a variety of applications with background gases such as nitrogen, carbon dioxide, methane and hydrogen. The 316 stainless-steel sensor is housed in a wall-mounted IP55 case suitable for indoor use.

The sensor design largely eliminates drift associated with other comparable devices, improving the stability of the measurement. This allows longer calibration intervals and reduces both labor and consumable costs.

The non-depleting sensor has no moving parts, and is therefore not affected by vibration or movement. This makes it suitable for remote and offshore installations.

Applications for the XTP501 include:

  • Monitoring inert blanketing gases for hydrocarbon processing
  • Inert gas for pharmaceutical or chemical industries
  • Biogas, waste, landfill and digester plants
  • Furnace gas control in steel industry
  • N2 generators
  • O2 generators