Electric stop if the motion sensor is off for ( x ) minutes

Good evening everyone , I'm looking for a motion sensor that if stationary for ( x ) minutes interrupts the electrical current to a device . advice ?

thank you very much

Most sensors detect motion, not no-motion. You'll have to watch the sensor output, and shut down the device when no motion occured for x minutes. You can use a retriggerable monoflop for that purpose, either in hardware (unlikely for minutes) or in software.