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New UHF RFID Tag Can Be Read On and Around Metal

Securitag Assembly Group's Overmolded Uni Metal Tag is designed to bring on-metal reading to users that had been unable to make RFID technology work in the past.
By Claire Swedberg

SAG has initially been selling the tags to existing customers, beginning in the second quarter of this year. One customer in Asia has begun using the tags to track metal cylinders in which liquefied petroleum gas (LPG) is stored, the company reports. The tags ensure that the gas bottle in use at any given time is under a well-maintained condition, so as to prevent safety issues.

As the cylinders are refilled with gas, SAG reports, the unnamed company needs its operators to check the inspection date marked on each gas bottle's neck ring, thereby ensuring that the cylinder is still safe for refilling. Traditionally, the maintenance record is tracked on the bottle housing by painting or hand-writing on that housing. This, however, slows down the process and could lead to errors, the company notes.

Jasmine Shih
"With the help of the RFID system implemented in the refill station," Shih says, "the Overmolded Uni Metal Tag attached to each cylinder can help keep track of its usage and maintenance history accurately."

The tags can also be used for asset management to ensure that the company knows each cylinder's location and status. Automating the process of identifying each gas bottle, SAG explains, enables operators to ensure that they never incorrectly fill a gas bottle that was not intended to be filled with a specific type of gas.

Other companies are using the Overmolded Uni Metal Tag to track such metal assets as cartridges or battery storage devices. The tags can be read even if they face away from the reader on metal shelving, the company reports.

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