Overview
The Inventory Master 125 KHz Reader Module For POS Terminal is a 125 KHz read-only module for EM 4100 or TK 4100 125 KHz cards that can read and output CSN card numbers. It has the option of Wiegand 26, RS 232, and TTL output formats.
Technical Specifications
| Frequency | 125 KHz |
| Power Supply | 3.3 V to 5.5 V |
| Reading Distance | > 3.14 in (8 cm) |
| Supporting Card | EM 4100, TK 4100, EM 4100 |
| Antenna | External |
| Protocol | ISO 14443-A |
| Working Temperature | 14 °F to 158 °F (-10 °C to 70 °C) |
| Dimension | 1.53 in x 0.74 in x 0.35 in (39 mm x 19 mm x 9 mm) |
| Weight | 12.34 oz (0.35 kg) |











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