The 433 MHz M163 Wristband Tag is a battery-powered RF transmitter designed to be worn by children or adults for student, patient or personnel tracking applications. Every tag broadcasts its unique ID and a status message at a periodic rate (that is programmed at the factory). These tags provide an economical solution for educational settings, healthcare or enterprise use. RF Code’s patented communication protocols support high tag densities that allow large populations of tags to be deployed in confined spaces.

M163 Tags can be programmed to operate at a 2-second beacon rate for security applications. This provides a method for rapidly locating and identifying personnel as they move through controlled areas. With typical read ranges of 300 feet, a single reader can provide coverage for a large area, such as an auditorium-style classroom or hospital emergency room.

The M163-series tags are designed to be comfortably worn by the user when attached with standard single-use ¾” wristbands. Tag cases are impact resistant, splash resistant and temperature stable. This design includes an internal gasket and the tags are sealed via sonic-welding at the point of manufacture to resist moisture and fluids. Labels are applied internally to the clear PVC enclosure, allowing the tag to be subjected to rigorous wipe-down and cleaning procedures. Simply discard the wristband and re-use the tags over-and-over.

Powered by a coin cell battery, the M163 tag will continuously operate in extreme temperature environments (from -20 to +70 degrees Celsius). The tag operates with a very low duty cycle that translates to long battery life (typically > 4 years). Based on the ratings and specifications from the battery manufacturers, RF Code develops usage models to calculate the life of the active RFID Tags. Like all models, there are assumptions and approximations involved. The values are to be taken as engineering estimates – not guaranteed performance. Exposure to extreme temperatures will shorten the battery life. RF Code warrants all tags to be free from defects in materials and workmanship for a period of 1 year.


  • Encoded Radio Transmissions at 433 MHz
  • Smooth, Form-fitting Design Accepts Standard ¾” Single-Use Wristbands
  • Waterproof Sonic-Welded Enclosure
  • Customizable Beacon Rates
  • Low Power Consumption for Long Battery Life
  • Superior Anti-Collision Technology for High Tag Densities