Dew sensor Intended use Detection of condensation on coolant pipes in residential or commercial buildings Connection to KNX button interfaces or other binary inputs with query voltage 5 V (e.g. 2177 SV R, 2076-2 T, 2076-4 T, .. 2178 TS .., .. 2178 ORTS .., CO2 .. 2178 .., 23001 1S U, 23002 1S U, 39001 1S U) Installation on coolant pipe
