As a wireless room thermostat, the radio receiver works together with the VTX-SP remote control unit. The room thermostat consists of a remote control unit that serves as a radio room temperature sensor for measuring the temperature in the room and as a transmitter, and at least one radio receiver as a controller that is directly wired to a heating element. One or more radio receivers from the VTX series can be assigned to the remote control unit. If the installed power exceeds the specified switching power of the respective radio receiver, the heating elements must be switched via additional load relays type LS-EUP or radio receivers. Installation is flush-mounted in the switch box. Dimensions 50x47x33mm, frequency 868 MHz, operating voltage 230 VAC, 50 Hz, switching capacity 10 A (2.3kW), operating temperature: 0-40°C, protection class II, switch: normally open contact, potential-free.
| Property | Value |
| Number of relays: | 1 |
| Mounting type: | Flush-mounted |
| Radio frequency: | 868 MHz |
| Power supply: | 230 V AC |
| Color: | white |
| RAL number (similar): | 9010 |
| Material: | Plastic |
| Halogen-free: | no |
| Surface: | other |
| Mounting type: | other |
| Material quality: | other |
| Surface finish: | matt |
| Suitable for protection class (IP): | IP44 |
| Suitable for dimmers: | no |
| Suitable for pulse switches: | no |
| Suitable for roller shutter switches: | no |
| Suitable for switches: | no |
| Rolling code system: | no |
| In the housing: | yes |
| In the tube base housing: | no |
| As a module/circuit board: | no |
| Touch operation: | no |
| Switching operation: | no |
| With radio hand transmitter: | no |
| With radio coding device: | no |
| With radio button: | no |
| Suitable for blind switches: | no |
| Suitable for blind/roller shutter switches: | no |
| Transparent: | no |
| Protection class (NEMA): | other |
