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B-meters HYDROCLIMA-RFM Wireless Heat cost allocator

A heat cost allocator with two temperature sensors, the ability to record ambient temperature, the capability of radio transmitting the collected data using the Wireless MBUS EN13757-4 protocol, the availability of statistics on detected temperatures, historical consumption, and average temperatures going back up to 24 months, a battery life of ten years, and the provision of mounting brackets for all types of radiators.

The EN834 standard has been approved.

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  • Technical Features
  • Dimension
  • Installation Poition


HYDROCLIMA–RFM, 2 sensors, EN834, EN60950-1, EN 13757-4, EMC


LCD, 6 digits


90 x 44 x 24 mm

Max battery life

10 years*

Calculation start temp.

21°C ∆t 3 K, 38°C (optional, summer mode)

Reading method

RFM - M-BUS EN13757-4 radio wireless (optical reading still available)

Operating temperature

from 1°C to 90°C

Types of central heating

two/single pipe

Max radiator power

10000 W

Temp. meas. uncertainty


Tamper alarm

yes, with date log


via optical port



date of activation, calculation period parameters (calculation disabled months, summer months), comfort recording on/off


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