Hi My first posting by reply so see if it works.... I am installing a circuit that measures a small pressure . The=20 display circuit will be about 25 feet from the source. I am wondering=20 if it is better to have the transducer as close to the source as=20 possible and run the wires to the display board or locate the=20 transducer in the display case and run the 1/4" tubing from the=20 pressure source to the transducer. I am guessing that I may need to=20 install a buffer/driver op amp at the source if the transducer is=20 located there but by moving the transducer, I would cause (I think)=20 error due to the length of tubing (1/4" plastic). The pressure is in the range of 1-2 psi and the sensor signal is 1-3 volts. The sensor is similar to this=20 one http://search.digikey.com/ca/en/products/MPX5010GP/MPX5010GP-ND/46405= 5 Advice? Thanks Shawn --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .