Viking's model LRR-4 Long Range 4 Channel Receivers with integrated receive antenna and LRT-4 Long Range Wireless 4 Channel Radio Transmitters comprise Vikings high frequency, longrange (RFID) identification solution. Intended for security access control applications, the LRT-4's wireless communication is based upon a secure, digital, anti-playback routine. The LRT-4 Transmitters have four buttons, each corresponding to its own Wiegand output on the LRR-4 Receiver. Each Transmitter includes an integrated red LED, used to indicate both positive button press and battery strength. They are also equipped standard with a 125?KHz HID** compatible potted proximity module allowing the Transmitter to also be used as a close range access credential.

The transmitters and receivers operate at 433 MHz allowing a transmission range of up to 400 ft (line of sight). The LRR-4 receiver has an adjustable read range, optional external antenna connector, terminal block with 4 channel Wiegand data output and a transducer and LED to confirm transmitter button press. The LRR-4 has a conformal coated circuit board mounted in a NEMA 4, 4x rated box for use in outdoor applications.