Thermal Mass Flow Meters are used extensively by Industrial, Environmental and Commercial customers for Gas Flow applications. The innovative digitally-driven circuit eliminates the traditional drift-prone analog Wheatstone bridge utilized by competition. The reproducible zero flow data flow point enables the user to perform a simple single-point in-situ calibration verification procedure, which verifies that the flow meter continues to operate within the accuracy specifications of the original traceable calibration.


  • Proprietary digital sensor drive circuit provides enhanced signal stability and improved temperature compensation
  • High contrast photo-emissive display with numerical Flow Rate, Total and Temperature, as well as Graphical Flow Indicator
  • Isolated 4-20 mA output / Pulse Output / Modbus® compliant RS485 RTU communications
  • Rugged, user-friendly packaging with easy terminal access
  • Choice of 115VAC/230VAC or 24VDC operation (12 VDC Optional for solar operation).
  • Low Power dissipation, less than 2.5 Watts. Lowest power usage of any Thermal Mass Flowmeter


  • Combustion Control in Boilers
  • Sub-metering Natural Gas
  • Compressed Air flow measurement
  • Natural Gas Flow Measurement
  • Pulp-paper industry, Power Industry, Steel Plants, Textiles
  • Vent air flow meter (Environmental compliance / Energy efficiency)


Toshniwal Instruments (Madras) Pvt. Ltd, 267, Kilpauk Garden Road Chennai, Tamil Nadu - 600 010 (India)



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