The 433 MHz M171 Durable Tag is a battery-powered RF transmitter
designed with a sealed, water-resistant, crush-proof enclosure
for general-purpose asset tracking. 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
a variety of asset tracking environments. RF Code’s patented communication
protocols support high tag densities that allow large populations
of tags to be deployed in confined spaces.
M171 Tags can be programmed to operate at a 2-second beacon rate
for security applications. This provides a method for rapidly
locating and identifying tagged assets 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 industrial laboratory
or commercial warehouse.
The Durable M171-series tags are impact-resistant, splash-resistant
and temperature stable. Labels are sealed on the inside of the
clear polycarbonate enclosure via sonic-welding at the point of
manufacture. This protects both the label and the electronics
from moisture and fluids. The durable enclosure provides a degree
of protection in harsh environments; it can withstand salt water
splashes, cleaning solutions, germicides, disinfectants, etc.
This enclosure design has been evaluated for compliance with Ingress
Protection Rating 54 (IP54).
Powered by a coin cell battery, the M171 tag will perform reliably
in extreme temperature environments (from -20 to +70 degrees Celsius).
In addition, the tag performs well after exposure to humidity
and hot/ cold cycles. The 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.