The SKE-34 is a heavy duty, self contained Access Control Keypad with features suitable for most residential, small commercial and harsh industrial access control applications. With a 2A relay on board, simply add power (5VDC or 12 to 24VDC) and the SKE-34 is ready to provide dependable access control. Rugged Stainless Steel construction and proprietary Piezoelectric Billion Cycle Switch Technology ; ensures superior performance in any environment (heat, rain, snow, ice -up to 3/ 8"). The SKE-34 is backed by a limited lifetime warranty. Also known as -ESSEX SKE34S, Control Keypad, SS, 500 User-Essex Electronics KYPD MULTIPLE USR SELF CONTAIN - EX-SKE34S