Battery-free RFID light detector tag launched

7th July 2014
Posted By : Siobhan O'Gorman
Battery-free RFID light detector tag launched

A battery-free RFID light detector tag has been launched by Farsens. The SHADOW, which is compatible with EPC C1G2 readers, features a LPRS N5AC501085 Light Dependent Resistor (LDR) to detect exposure to light or darkness. The tag has a 96 bits EPC number, a 32 bit TID and a password protected Kill command.

Built in a PCB format, the RFID tag is available in different sizes with a communication range up to 1.5m and operating temperatures from -30 to +85°C (-22 to +185°F).

The SHADOW is available in a variety of antenna design and sizes, depending on the application. It can be embedded in a variety of materials such as plastics or concrete and encapsulated in an IP67 or IP68 casing for usage in harsh environments. Evaluation kits are also available.

Being passive, the RFID tag is suitable for use in restricted areas where the use of batteries is not recommended. As it will never require a battery, the tag will reduce maintenance costs.

The SHADOW should be used in automation applications, where exposure to light of tagged assets change during the process. Monitoring the changes allows the user to program a variety of procedures based on process time/status and the detector data. They are usually embedded in sealed places where exposure to light is scarce. Having an exposure is an indicator that a specific action is being taken or needs to be taken, depending on the specific application.


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