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SMARTRAC, RFMicron Release Passive RFID Temperature Sensor Technology

The new sensors enable users to track the temperatures of products or assets via low-cost disposable passive RFID tags and off-the-shelf UHF EPC Gen 2 readers.
By Claire Swedberg

The sensor tags can be affixed to cardboard, plastic, wood, stone or other construction materials. According to Hyytinen, they are intended to serve as a solution for applications in which food or other perishable items, or conditions within a room, need to be periodically monitored. He says he expects the Sensor Temperature DogBone to be used in the food cold chain, as well as for industrial, health-care, agricultural and Internet of Things applications.

RFMicron's Hermes IoT Smart Edge Development Platform includes an RFID reader and other components to help developers create a system using devices that capture sensor data and forward it to a cloud-based server.
The Sensor Temperature DogBone inlay has a die-cut size of 97 millimeters by 27 millimeters (3.8 inches by 1.1 inches) and an antenna measuring 89 millimeters by 24 millimeters (3.5 inches by 0.9 inch). The Magnus S3 chip complies with the EPC Gen2v2 standard and comes with a 64-bit unique tag identifier (TID), 128 bits of Electronic Product Code (EPC) memory and 176 bits of user memory.

SMARTRAC's Lauri Hyytinen
In addition to its new Temperature Sensor tag, RFMicron has released a new Predictive Maintenance Kit to enable users to wirelessly monitor the temperatures of motors and switchgears, says Andy Lambrecht, RFMicron's senior director of marketing. The kit comes with 75 Temperature Sensor Powered by Magnus ceramic tags, as well as a Nordic ID handheld reader loaded with RFMicron software to interpret sensor data and manage any alarms or alerts related to temperature readings outside of preset acceptable perimeters. The tags have peel-and-stick backing, enabling them to be easily affixed to a piece of equipment. These sensor tags are made with a quad-flat no-leads (QFN) package soldered to an antenna.

The kit, Lambrecht explains, is designed to enable companies that use motorized equipment to easily monitor the temperatures of their devices and thereby identify when those temperature levels might indicate a problem. For instance, equipment often begins running hotter than normal if failure is imminent. By identifying the temperature change in advance of a failure, users can replace that piece of equipment (or provide preventative maintenance) before its failure can disrupt their operations. The system, he says, offers an easy, low-cost alternative to mounting temperature loggers on equipment that must be accessed and visually viewed wherever they may be mounted on that motor or other gear.

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