“Master-slave” power strips allow the automatic disconnection of devices from the power supply, which, after leaving the workplace, are most often left on or in "standby" mode.
The shutdown cycle control is automatic, synchronized with the switching on / off of the computer at the beginning and end of the working day.
Switching on and off during a temporary absence at the station is controlled by a motion sensor, by detecting a phone with Bluetooth system, an identifier or RFID chip.