A differential pressure transducer measures the difference between two or more contacts. This is a more complicated task, as there are two or more sensing units to be considered. Let’s examine different types of differential pressure transducers varying by their features and pressure ranges in the table below.

Special Features	Style	Minimum Pressure Range	Maximum Pressure Range	Accuracy %
Low Pressure Ranges	General Purpose	1 psi	10,000 psi	0.25
Compound Pressure Ranges	General Purpose Transducer	-14.7 psi	300 psi	0.25
High Accuracy, Premium Thermal Specs	High Accuracy	1 psi	5000 psi	0.08
Metric Range/Threads	General Purpose Transducer	1	20 Bar	0.25
Marine Use All Stainless Steel Construction	Special Purpose	5 psi	5,000 psi	0.25
Marine Use Rugged Sputtered Gauge Design	Special Purpose	5 psi	5,000 psi	0.25
High Accuracy	High Accuracy	2 psi	30,000 psi	0.05
Triple Range	High Accuracy	5 psi	10,000 psi	0.1

Differential pressure transducers can be designed for hydraulic systems, with two separate sensing elements to measure the pressure at the input ports.

You should first define clearly what kind of transducer you need and for what purpose. Later, it will be easy for you to make the right choice.

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1. Pressure Transducers
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3. UAV Pressure Transducers