Homematic IP Heizkörperthermostat Basic - 250 m Range

Homematic IP Heizkörperthermostat Basic is the HmIP-eTRV-B radiator thermostat for smart control of compatible heating valves. It uses two 1.5 V AA batteries, measures 57 x 68 x 102 mm, and weighs 185 g including batteries.The official product page lists these specifications.

Basic Heating Hardware

The thermostat has an M30 x 1.5 connection and an IP20 protection rating. Its stated operating range is 0 to 50 C, while the radio system uses the 868.0-868.6 MHz and 869.4-869.65 MHz bands.

The device supports a typical battery life of 2 years and a typical open-area radio range of 250 m. The 185 g weight includes the batteries, so it describes the assembled thermostat rather than an empty housing.

Control And Compatibility

Standalone operation uses push-to-pair control directly on the thermostat. The device can also connect to a Homematic IP Access Point, the Homematic IP smartphone app, or compatible third-party partner solutions.

Homematic IP specifies up to three adjustable heating profiles and 13 possible changes per day. The official feature set also includes an eco mode, boost function, valve protection, an operating lock, and open-window detection.

The package contents listed in the datasheet include the radiator thermostat, a Danfoss RA adapter, a support ring, mounting accessories, two 1.5 V AA batteries, and a user manual.The datasheet identifies the included components.

Position In Smart Heating

Compared with the more advanced Homematic IP radiator thermostat, the Basic model has a shorter stated open-area range of 250 m. The standard radiator thermostat lists 300 m, while both models specify a typical battery life of 2 years.

The Basic model fits users who need programmable radiator control, app access, or direct device operation without replacing the heating system. Its M30 x 1.5 connection and included Danfoss RA adapter support common installation situations, but valve compatibility should be checked before installation.

Verdict For Radiator Control

Homematic IP Heizkörperthermostat Basic is an entry-level smart radiator thermostat with defined scheduling, direct control, and optional system integration. The main limits are its 250 m stated radio range, IP20 rating, two-year typical battery life, and requirement for an Access Point when app or cloud control is used.