ALTOX TIMER-1 is a control timer that allows to set up automatic switching on of a Webasto or a Eberspacher heater at any time of the day with with accuracy of one minute (from 00.00 to 23.59). There are two programmable timers for automatic switching on: single and recurrent (for seven days in advance). You can set up the length of the heater's function within a range of 10 to 55 minutes.