The Hydrocal-M4 thermometer is a modern radio-thermometer designed for apartments and small residences. It is produced by BMETERS and features precise thermal sensors that measure temperature differences in conjunction with water flow measurement, allowing accurate recording of heating and cooling energy.

The compact design of the Hydrocal-M4 thermometer is in line with the latest trends in heat measurement. The magnetic transmission between the flow sensor and the electronic unit offers reliability, high measurement stability, and protection against magnetic field interference.

The thermometer is compatible with the HYDROLINK remote reading system, allowing data collection via radio waves (W-MBUS or LORA). It also supports the connection of two water supplies, offering a wide range of applications.

Key features:

• DN15 Device
• Nominal flow qp: 0.6 m³/h
• Maximum flow qs: 1.2 m³/h
• Minimum flow qi: 12 l/h
• Accuracy class: 2
• Flow strategy (H/V): 50/50
• Pressure losses for Qp: ≤ 0.25 bar
• Starting limit: 3 l/h
• Environmental class: A (E1; M1)
• Temperature measurement range (Heating): 1÷90°C
• Temperature difference range (Heating): 3÷90K
• Temperature measurement range (Cooling): 0.2÷90°C
• Temperature difference range (Cooling): 0.2÷90 K
• Temperature sensors: digital
• Temperature sensor cable length: 1.5 m
• Power Supply: lithium battery
• Expected battery life: 10 years
• Protection class: IP 65
• Display: LCD 8 characters + icons
• Measurement units: GJ / kWh
• Allowed fluid: Water