We also manufacture our own versatile timer switch, the IntelliSwitch.
The IntelliSwitch switches off appliances for you according to your settings.
Use it to run bathroom fans for 15 mins after your shower
Cycle heated towel rails for 4 hours on, and 8 hours off x 2 daily
Automatically switch off laptop chargers or electric blankets for safety.
See www.intelliswitch.co.nz for details.