EMX DTM-9 Seven Day Electronic Programmable Timer - 24 Volt Large display and control push-buttons for easy operation. Back-up rechargeable battery for power outages or brown outs. Can program six different events/week. Can also program each day individually or a block of days. Wide power supply options: can be ordered in 24V AC or DC, 120V AC, 240V AC. Manual override for ON or OFF operation.