The E3SAT11M1J03M is an electronic, time-delay, single-function control module from the E3S Series of Omron. This product is used for sensing and controlling the on/off switching of AC loads in applications such as automatic door openers, timers, and temperature controls. It features a wide selection of time delays from 0.1 seconds to 60 hours, adjustable via a rotary knob on the front of the unit. It also has a built-in Test button to test the relays before and after installation. Its solid-state construction ensures reliability and long product life.