Foxboro IAP20 I/A Differential Pressure Transmitter

Ideal for applications that require a low power, low voltage transmitter, the Foxboro® brand Model IAP20 delivers consistently precise measurement of gauge, absolute and differential pressure. This I/A Series® Pressure Transmitter draws no more than 3 mA, has a 9 V dc minimum voltage and broadcasts a 1 to 5 V dc output signal. The exceptionally dependable IAP20 features silicon strain gauge sensors that have been effectively field-proven over hundreds of thousands of installations.

For applications not requiring a digital output signal, the IAP20 provides the benefits of an intelligent, modifiable, high-performance transmitter at an economical price:

  • Liquid Crystal Display (LCD) digital indicator including on-board pushbuttons

  • Pushbutton calibration and configuration:

    • Forward or reverse output

    • Reranging without applied pressure

    • Adjustable damping

    • Zero and span settings

    • Failsafe output; upscale or downscale




The IAP20 is one of an expansive line of transmitters that includes styles specifically engineered for a broad range of measurement types, materials and process connections. Direct connect or capillary connected pressure seals are offered, as are industry-specific seals for sanitary, and pulp and paper processes. An assortment of customary or low profile differential pressure transmitters are also available.

This transmitter meets various Agency requirements for hazardous area locations. Styles that comply with Agency flameproof and zone requirements are offered. This transmitter is Dual Seal certified to meet ANSI/ISA 12.27.01-2003 specifications. Comes with standard 5-year warranty.

100% Original

We guarantee you the sale of Original Brands.

Payment Options

We accept Visa, MasterCard and American Express.

30-Days Returns

Return or exchange items purchased within 30 days.