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![Series 21 D Pressure Transponders Data Loggers](https://images.findtheneedle.co.uk/findtheneedle/products/10689136.jpg)
With passive RFID Transponder Interface. This series is a unique combination of an extremely sturdy, tried-and-tested industrial pressure transmitter and RFID (radio frequency identification) wireless technology.
For more information on Series 21 D Pressure Transponders Data Loggers talk to KELLER (UK) Ltd
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