TRT174-30.14 6x key K1K2K3K4 K5=heating TRT174-30.34 5x key K1K3 rev LON TRT175-30.14 5x key K12 K5=alarm, rev control;900196008 TRT175-30.14 5x key K1234 K5=alarm TRT175-30.14 5x key K1K3 rev control TRL-sensor module multi-sensor 230V LON TRS200-01 fan control unit 0-24V TRT174-30.14 5x key K1234 STANDARD TRT174-30.14 5x key K1K2K3K4 K5=ALARM TRT174-30.14 5x key K1K3 rev TRT174-30.14 6x key K1K2K3K4 K5=heating TRT174-30.34 5x key K1K3 rev LON TRT175-30.14 5x key K12 K5=alarm, rev control;900196008 TRT175-30.14 5x key K1234 K5=alarm TRT175-30.14 5x key K1K3 rev control ST64-31.10 PT100 230AC K1