| Width | 0.9m | 
| Depth | 1.8m | 
| Height | 2.2m | 
| Master unit only Automatic infra red tap (depending on model) 2.2kw 240v water heater 240v distribution board with RCD and circuit breakers | |
| Weight | 95kg (approx) | 
| Lighting | 2x 13w low energy hi-lite (240v) | 
| Power connection | 1 no 16amp 240v in 2x interface unit supplies 2x system connections-out | 
| Slave unit only Automatic infra red tap (depending on model) | |
| Weight | 70kg (approx) | 
| Lighting | 2x 13w low energy hi-lite (240v) | 
| Power connection | 1 1x system connection-in 1x system connection out | 
Nb. A maximum of 3 slave units per master unit. At least one master unit needed for each installation.