for controlling underfloor convectors or concealed radiators, with frost protection, setpoint range 7-28 °C, scaled cap 0 * 1-5, with zero position suitable for Oventrop valves with threaded connection M 30 x 1.5 as well as for integrated valve fittings with threaded connection M 30 x 1.5 of the radiator manufacturers: ACOVA, Alarko, Arbonia, Baufa, Baykan, Biasi, boki, Bemm, Borer, Bremo, Brugman, Caradon-Stelrad, Celikpan, Cöskünöz, Concept, DEF, Delta, Demrad, DiaNorm, Dia-therm, Dunaferr, DURA, Emco, Ferroli, Gerhard + Rauh, Heatline, Henrad, HM-Heizkörper, Hoval, IMAS, Jaga, Jugotherm, Kalor, Kampmann, Kermi, Korado, Manaut, Merriott, Neria, Purmo, Radson, Rettig, Runtal, Starpan, Superia, Termoteknik, US-Steel, Vasco, VEHA, Zehnder, Zenith