The 433 MHz M100 tag is a battery-powered RF transmitter that attaches to items that need to be tracked, located and identified. Every tag broadcasts its unique ID and a status message at a periodic rate (that is programmed at the factory). With a modular design and low price, tags provide an economical solution to a wide variety of problems. RF Code’s patented communication protocols allow for very high tag densities. Large populations of tags can be deployed in highly scalable asset tracking environments.

M100-series tags can be customized to support a broad range of integrated sensors to monitor tag status. Motion activated tags can be programmed to operate at 2 beacon rates: slow when the tag is stationary, and faster when the motion sensor is activated (to provide immediate notification when objects are moving). Tamper switches can be installed to trigger an alert if a tag is removed. Panic buttons can be added for personnel and security applications.

Tag cases are impact resistant, splash resistant and temperature stable. Read ranges up to 1,000 feet can be obtained with optional antenna configurations. The standard tag operates with a very low duty cycle that translates to long battery life. 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. In most deployment scenarios, tags with a 10-second beacon rate have a useful life of 5-to-7 years. 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
  • Small Size and Low Cost
  • Customizable Beacon Rates
  • Low Power Consumption for Long Battery Life
  • Multiple Mounting and Enclosure Options
  • Adaptive Form Factor for Customized Solutions
  • Smart Tag Options: Motion and Tamper Detection, Panic Alert
  • Superior Anti-Collision Technology for High Tag Densities