SK-1323-SPQ Seco-Larm Sealed Housing Weatherproof Digital Access Keypad w/Built-In Proximity Reader 12~15 VDC operation. 1,010 Users (Output #1: 1,000 users, Output #2: 10 users). 2 Form C relays, each rated 1 Amp @ 30VDC. Each relay has programmable output time from 1~99 seconds or toggle. Output #2 can be programmed for use with a doorbell.