LCD Digital Timer has the same features as the MK-1 and MK-2 Control Units. These include an accurate clock, power saver, lithium back up battery, press-to-test button with system check, test delay safety feature, six programmable feed times with individual motor run times and a progressive counter. This unit is field repairable without soldering. Just open the timer and remove the three screws holding the clock/electronic circuit, unplug and replace. Connect your motor and battery wires to the top connectors and start feeding.