The key to a transparent heating cost billing.

Our electronic heat cost allocator, doprimo 3 radio net-OMS, is already future-proofing properties: It combines all the proven features of the doprimo generations, including the standard integrated wireless interface, and is fully interoperable.

It offers three different service options, distinguished by an easy-to-read display and individual programming. You can choose between on-device reading, remote reading from outside the building, or full remote access.

This powerful tool also enables bidirectional transmission in network mode and unidirectional transmission in walk-by mode, allowing seamless transmission of data telegrams using different transmission methods.

The doprimo 3 radio net-OMS typically read is automatically on a monthly basis via a communication unit. The recorded end-of-month values serve as the basis for mid-year consumption information for tenants.

A heat cost allocator is a device used to measure individual heat consumption in buildings and is installed on radiators. The heat cost allocator consists of a top section made of heat-resistant plastic that houses all the electronics, including the LC display, a long-life 10+2-year lithium battery, and temperature sensors. The bottom section of the casing is made of highly thermally conductive die-cast material. A mechanical seal, along with tamper protection via the device’s electronics, safeguards against manipulation.

As a dual-sensor device, the heat cost allocator measures both the radiator surface temperature and the room air temperature. It starts recording consumption as soon as its activation temperature is reached and there is a corresponding temperature difference between the radiator sensor and the room air sensor.

In single-sensor mode, a fixed value for the room air temperature is simulated within the electronics. The device then calculates the difference between the measured radiator surface temperature and this preset value. In both operating modes, the temperature difference serves as the basis for determining heat consumption.

There are two types of devices: compact units, which are mounted directly on the radiator, and remote sensor units, where only the radiator sensor is attached to the radiator while the main housing is mounted separately on the wall and connected via a cable.