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Honeywell Introduces The ASDX DO Pressure Sensor

With Enhanced Digital Output, Application Specific Integrated Circuitry (ASIC)

FREEPORT, Ill., June 7, 2004 — Honeywell [NYSE:HON] Sensing and Control announces the introduction of the ASDX DO Pressure Sensor. The ASDX DO features a digital output, which translates into higher clarity, better response times, and ease of interface with your application. The ASDX and ASDX DO Series sensors are based on the proven performer and industry leading SDX Series sensors.

The ASDX DO Series sensors are fully calibrated and temperature compensated with on-board Application Specific Integrated Circuitry (ASIC). They provide digital correction of the sensor offset, sensitivity, temperature coefficients and non-linearity. The ASDX DO sensors use I2C compatible protocol, which allows easy interfacing to most commonly used microcontrollers and microprocessors without additional components or electronic circuitry. They have standard DIP packaging and a compact footprint.

The 2-wire I2C interface has a Serial Clock Line (SCL) input and serial digital output data line. The output of the device is a corrected pressure value in hexadecimal format with 12-bit accuracy. Devices are available to measure absolute, differential, and gage pressures. The absolute devices have an internal vacuum reference and an output proportional to absolute pressure. Differential devices allow application of pressure to either side of the sensing diaphragm and can be used for gage or differential measurements.

All ASDX DO devices are accurate to within ± 2.0 % full scale. The devices are designed for operation from a single 5 Vdc supply. The sensor is designed and manufactured according to standards laid down in ISO 9001. These devices are intended for use with non-corrosive, non-ionic working fluids such as air and dry gases. The ASDX DO Series sensors are available in pressure ranges that cover pressures from 0 to 1 psi up to 0 to 100 psi. Two ASDXL DO Series low-pressure versions are planned for future release with pressure ranges of 0 to 5 H2O and 0 to 10 H2O.

For more information, please contact us at www.honeywell.com/sensing/promo/prasdxdo or call us at 800-784-3011 (reference code ASDXDO).

Honeywell International is a $23 billion diversified technology and manufacturing leader, serving customers worldwide with aerospace products and services; control technologies for buildings, homes and industry; automotive products; turbochargers; specialty chemicals; fibers; and electronic and advanced materials. Based in Morris Township, N.J., Honeywell’s shares are traded on the New York, London, Chicago and Pacific Stock Exchanges. It is one of the 30 stocks that make up the Dow Jones Industrial Average and is also a component of the Standard & Poor's 500 Index. For additional information, please visit www.honeywell.com.

Honeywell Sensing and Control is part of Honeywell's Automation and Control Solutions group, a global leader in providing product and service solutions that improve efficiency and profitability, support regulatory compliance, and maintain safe, comfortable environments in homes, buildings and industry. For more information about Sensing and Control, access www.honeywell.com/sensing.

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