Hedland”s MR flow transmitter recently received a U.S. patent for a design that conserves power by activating only portions of the Anisotropic Magnetoresistive (AMR) array electronics in a systematic way. One of the greatest hurdles to overcome when integrating the magnetic sensor technologies into an industrial sensor is they are power hungry. Most are powered and transmit information on the same two wires. Unique to the MR Transmitter is that it does not power all of the MR sensors at once. The microprocessor selects and reads the output voltage of seven AMR sensors, one at a time, until the entire array of sensors have been read. This voltage is routed through a multiplexing circuit and then into an instrumentation amplifier. The signal is amplified, passed through a low-pass filter, and then input to the A/D converter built into the microprocessor. Based on the readings, the microprocessor determines the absolute position of the magnet inside the flowmeter and calculates the flowrate based upon user selectable setup scaling parameters. The flowrate is then displayed on the LCD display. The unit can also calculate and display the total accumulated flow. Analog outputs of four to 20 mA current loop, zero to five Vdc and zero to 10 Vdc are provided. These outputs are calibrated to output an analog current or voltage corresponding to the measured flowrate. The transmitter also has the ability to enter up to 10 linearization points to compensate for the nonlinearity of the flowmeter.