M-Bus/Modbus Heat Meter

From £295.50 Ex VAT

SmartHeat45 packages are available for either heating or cooling systems.  We have ONE heat meter that works with all flow meters, so we have kept it as simple as possible for you.  You can order what you need from the drop downs and  if at any time you are unsure of what you require or need any assistance please call our team on 01524 555 929 and we will be happy to assist.

All our heat meter packages include a heat calculator, a pair of temperature sensors (1 x flow and 1 x return) with the brass compression t-pieces or weld boss pieces (depending on the size of your water meter), a flow (water) meter, with pulse cable, and a thermal jacket.

The thermal jacket is optional but we do recommend it, just to ensure that the temperature of the water meter stays consistent.

Please note when ordering this product we will need to have the following information in order to program the unit :-

Baud Rate : 1200 | 2400 | 4800 | 9600
Address : 1 – 250
Parity : None | Even

Baud Rate : 2400 | 4800 | 9600
Address : 1 – 250
Parity : None | Even

If you do not need programming please order the standard heat meter here.


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Main Features & Functions

  • Calculates the energy used in Heating Systems
  • This package falls within the combined component accuracy of Class 1 levels
  • ‘On site’ programming facility and digital key option for reprogramming
  • Manufactured to EN1434-1-1997
  • Suitable for all billing applications – including Renewable Heat Incentive
  • Open collector pulsed output (with grab circuit) as standard
  • Digital high accuracy temperature sensors with ROM Clip
  • Sensors do not need to be in matched pairs

Data Sheets

SmartHeat45 Manual
Technical Sheet
TOMi Water Meter
Temperature Sensor
Installation Diagram

Registration map


Additional information

Weight N/A
Meter Type

Cold, Hot

Size (mm)

15mm, 20mm, 25mm, 30mm, 40mm, 50mm, 65mm, 80mm, 100mm, 125mm, 150mm, 200mm


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