The Elk UltraProx Wiegand Reader is a compact, technically advanced external proximity reader with 26 bit Wiegand output for use with a separate controller. Compatible with Elk M1 control panels and most other access controllers. Ideal for higher security installations and as an alternative to remembering PIN codes. Features: Compatible with ELK M1 Controls, using M1KAM Access Module or certain M1 keypads Compatible with most access controllers 26-bit Wiegand Output Slimline waterproof housing with epoxy potted electronics User configurable inputs for the onboard buzzer and green LED Compatible with Clamshell Style (Credit Card size) Proximity Cards (ELK-M1PRC) Compatible with Keychain Style Proximity Fobs (ELK-M1PRF) Substitutes for User Code Pin Entry Whats Included: Ultra Prox Weigand Reader One (1) ELK-PRC Proximity Card Mounting Hardware Instructions