| Code | Description |
 | RF2G4 | Built-in 2.4 GHz radiofrequency module. Max. functioning distance in appropriate environmental and installation conditions: 45m indoors, 140m outdoors. Up to 39 configurable channels. (RF2G4 must be combined with another radio module). |
 | RF2G4-TTL | Integrated 2.4 GHz radio frequency module, complete of TTL port. Max. functioning distance in appropriate environmental and installation conditions: 45m indoors, 140m outdoors. Up to 39 configurable channels. (RF2G4-TTL must be combined with another radio module). |