This circuit consists of two independent timers: a delay timer and an ON period timer, each individually adjustable from a few seconds to 20 minutes. As an example, using this timer will allow you to turn on a device after a certain preset delay time (Timer 1) and then to turn off the device after the preset ON period (Timer 2). The timer includes a relay that can handle loads of up to 10A / 110V AC or 24V DC.