Alpha differential pressure transducers & transmitters are constructed by stainless steeland glass, no glue or other organics.
That provides excellent performance, corrosion resistance and long-term stability.
Explore and learn how our differential pressure sensor applications can match your needs.
From HVAC/R to Critical Environments, etc, Alpha Instruments is the partner that prepares you for what’s next.
Alpha instruments is an experienced differential pressure(DP) transmitter supplier and differential pressure transducer manufacturer/factory. We are very proud to provide pressure transducers and transmitters for HVAC and other fields. We have low to mid-range pressure sensors available. With our unique product design and production set-up, we strive to meet any customer’s needs.
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Quick Answers
Frequently Asked Questions
A pressure transducer converts pressure into an unamplified electrical signal (typically mV/V or 0-5V). A pressure transmitter includes signal conditioning electronics that amplify and convert the signal to an industry-standard output like 4-20mA or 0-10V — making it suitable for long cable runs and noisy industrial environments.
Select a sensor whose full-scale range is 120-150% of your maximum expected operating pressure. Oversizing too much reduces effective resolution and increases relative error. Our application engineers can help — contact us with your requirements.
4-20mA (current loop) is preferred for industrial environments: immune to electrical noise, supports 1,000+ feet cable runs. 0-10V is simpler for data loggers and PLC inputs, but keep cables under 50 feet. We offer both on most models.
Alpha recommends annual calibration for most applications. Critical environments may require semi-annual per regulatory requirements. All sensors ship with NIST-traceable calibration certificates. We offer factory recalibration — contact us for RMA.