This kit will allow for you to electrify any Schlage ND80 series lever lock. The solenoid is dual voltage 12/24V AC/DC and is configurable from the factory set EU (Electrically Unlocked) to EL (Electrically Locked) in the field. Very simple to install and is available with an optional REX switch that can be inserted with a small screw driver. Optional REX switch is SPDT (NO, NC and COM). We are sure you will realize just how much time and money this electrified lockset kit will save you.