SC900AX : Lithium-powered controller and handset unit.
SC901AU : Mains-powered controller and mains-powered handset unit.
- 1 back-lit outdoor caller unit with badge reader
- 1 armoured cover for 1-dwellling outdoor caller unit
- 1 proximity badge
- 1 lithium battery-powered controller
- 1 indoor handset unit with lithium battery-powered base (or mains-powered base for the SC901AU)