The RC1240 RF Transceiver Module is a compact surface-mounted high performance module for 25kHz narrow band FSK operation with embedded protocol. The modules are completely shielded and pre-certified for operation under the European and US radio regulations for license-free use. When used with quarter-wave antennas a line-of-sight range of 2-4 km can be achieved at 433 MHz.

The RC1290 RF Transceiver module is also available on 915-928 MHz.


  • OEM equipment
  • Radio modems
  • Alarm and security systems
  • Point-of-sales terminals
  • Bar code scanners
  • Telemetry stations
  • Fleet management

Key Features

  • Smallest in the world (12.7mm x 25.4mm x 3.5 mm)
  • 25 kHz narrow band multi-channel operation
  • Very low current consumption, 3nA OFF mode
  • Embedded RC232TM protocol
  • Addressing and Error check
  • 128 byte data buffer
  • Simple UART interface for easy RS232 | RS422 | RS485 wire replacement
  • Compact shielded module for SMD mounting
  • No external components
  • No configuration required for single-channel use
  • Easy to use data interface, 3/5 V tolerant I/O
  • Wide supply voltage range, 2.8 – 5.5 V
  • Conforms with EU R&TTE directive (EN 300 220 | EN 301 489 | EN 60950) for 25kHz
  • Conforms with FCC CFR 47 part 15


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