- Read range of up to 400 ft (line of sight)-Convenient Key Fob design-4 buttons to activate up to 4 different Wiegand devices-Secure, Rolling Code + Encryption, digital, anti-playback wireless transmission-Integrated 125KHz proximity module for close range access credential (can be used with Viking Proximity card readers and certain 125KHz HID**readers)-Replaceable CR2032 battery lasts up to 500,000 button presses-Robust buttons rated for up to 1 million activations-LED to indicate button press and battery