| Calorimeter extension kits | | | | |
| KM2 Communication module | | | | |
| DL2 Plus Datalogger | | | | |
| VBus®/USB interface adapter | | | | |
| Flatscrew sensors | | | | |
| High-temperature sensors | | | | |
| Temperature sensors | | | | |
| V40 Flowmeter | | | | |
| FAP13 Outdoor temperature sensor | | | | |
| SP10 Overvoltage protection | | | | |
| AM1 Alarm module | | | | |
| SD3 Smart Display | | | | |
| EM extension module | | | | |
| VBus.net | | | | |
| Grundfos Direct Sensors™ | | | | |
| Smart Display SDFK | | | | |
| CS10 Solar cell | | | | |
| RTA12 Remote control | | | | |
| RCP12 Room control unit | | | | |
| TS10 Dew point switch | | | | |
| FRH/FRHd Humidity sensor | | | | |
| Cylindrical clip-on sensors | | | | |
| Central outdoor sensor unit | | | | |
| RTS room control unit | | | | |