Pack of 3 125-kHz RFID Readers w/RS-232 Interface, 2 LEDs and Common Cathode

Description

This is a pack of 3 Drexia RS-H3-05K 125-kHz RFID readers. Free shipping to U.S. destinations from our U.S. warehouse!
They offer contactless readout of identification data (UID) from transponders (cards, keyrings, etc.) compatible with ISO/IEC14443-3-A (for example MIFARE CARDS). The built-in two-color LED and buzzer can be used in various products. Read out UID data is sent as a string of ASCII characters through the RS-232 TTL open collector interface.
The data read from a transponder is transferred with RS-232 TTL interface. Standard transmission speed is 4800 bps.
Mounted bicolor LED (red/green).
Common cathode. (Need common anode? See this version:
https://www.ebay.com/itm/332661549710
.)
Designed to be mounted with glue.
Low case.
Standard cable length: 15.75 inches (40 cm), 5 wires.