Differential Pressure
pressure measurement relative to the surrounding atmospheric pressure.
See Also: Pressure, Absolute Pressure
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Pressure Gas Leak Detectors
The testo 512 differential pressure meter is available as four models. This model has a measuring range from 0.0.29 psi and is ideal for measuring pressure differences at filters and for carrying out pitot static tube measurements in air ducts at air flow speeds between 16 and 180 fps.
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CorSense™ Environmental IoT Sensors
Our line of CorSense™ wireless sensors are capable of monitoring air quality, humidity, barometric pressure, temperature, current, vibration, and more.Built with a rugged case and able to withstand harsh industrial environments, these sensors are all tested to ISO standards. When paired with CorGateway, sensors gather and transmit data securely to a Corvalent CorEdge computer anywhere from 2 to 28 miles away.Extremely energy efficient, CorSense IoT sensors can also run on batteries for up to 2 years.9 different sensor options:-Smart Vibration & Temperature Sensor -CO2, Temperature, Humidity & Particulate Matter Sensor -CO2, Temperature & Humidity Sensor -Temperature, Humidity, Pressure & Air Quality Environmental Sensor -Precision Pressure Bidirectional Differential Sensor -Pressure Bidirectional Differential Sensor -AC Current Monitor -Vibration & Temperature Sensor -Predictive Maintenance Module Sensor
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Pressure Micromanometer – Thermometer Data Logger
HD2164.2
Portable Micromanometer-Thermometer data logger with 2000 mbar built-in sensor. It performs measure of absolute, relative, differential pressure and temperature.
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Alnor Micromanometer
AXD610
The Alnor® Micromanometer AXD610 is an easy to use, handheld digital micromanometer for fast, accurate and reliable pressure measurement. It can also calculate velocity when used with a pitot tube. Ideal applications include HVAC commissioning and troubleshooting, testing and balancing, Pitot tube duct traverses, static pressure measurements and differential pressure measurements.
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Differential Pressure Adapter w/ App Compatibility
DPA1
UEi Test & Measurement Instruments
The DPA1 measures positive, negative and differential pressure and is compatible with iOS® and Android™ mobile devices. Measurement units can be selected from the following scales: InH2O, mmH2O, psi, bar, mBar, kPa, InHg and mmHg. The mobile device screen will display a numeric reading. And is backed by a 1-year warranty.
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DATA LOGGER
Dl7
Monitor and Record low differential pressures and temperature with the model DL7 Differential Pressure Data Logger. Unit includes an onboard thermistor for ambient temperature measurement
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HVAC/Indoor Air Quality
We rely on HVAC equipment to maintain acceptable temperature, humidity and ventilation levels for occupant health and comfort, and, now more than ever, to help regulate building health and manage increasing energy costs. The relationship between HVAC equipment, occupied space requirements, building materials, weather conditions and pressure differentials is an ever-changing dynamic process for indoor air diagnostics (IAD).
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Pressure Transducers with CAN Bus Interface
P66
The Validyne model P66 is a digital differential pressure transmitter designed for industrial pressure measurement applications. The on-board microprocessor provides high accuracy and improved stability in changing thermal environments. Communication via CAN Bus provides remote zero and span adjustment as well as digital pressure readings in engineering units or pressure counts.
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Pneumatic Pressure Transmitters
Deltapi N Series
Deltapi N series includes a range of pneumatic transmitters suitable for reliable measurements of pressure, differential pressure, flow or level of liquids, steam and gas. Deltapi N transmitters provides a wide selection of measuring elements to match required working pressure ratings and calibrated spans.
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Liquid Flow Meters
L Series
Alicat Scientific, Incorporated
Alicat’s L-series liquid flow meters uses our patented laminar flow design to provide users with fast, accurate, and repeatable volumetric flow measurement for water or selected other liquids (see Quick Specs below). At the heart of Alicat’s L-Series liquid flow meters is an internally compensated, laminar differential pressure measurement technology that yields linear results over a wide flow range.
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VELOCICALC Multi-Function Ventilation Meter
9565-P
The portable, handheld VELOCICALC® Multi-Function Ventilation Meter 9565-P features a menu-driven user interface for easy operation in your local language. On-screen prompts and step-by-step instructions guide the user through instrument setup, operation, and field calibration. The 9565-P also features an ergonomic, overmolded case design with probe holder and a keypad lockout to prevent tampering during unattended use. The 9565-P model has a differential pressure sensor and does not include a probe.
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Evaluation Kit for Differential Pressure Sensors of the SDP3x Series
EK-P4
The evaluation kit EK-P4 is designed for an easy and cost-efficient evaluation and qualification of Sensirion's SDP3x differential pressure sensors. Test now the features of the new differential pressure sensor. Especially at lowest pressure differences, the sensor provides highest accuracy and long-term stability. The evaluation kit EK-P4 is designed for an easy and cost-efficient evaluation and qualification of Sensirion's SDP3x differential pressure sensors. Test now the features of the new differential pressure sensor. Especially at lowest pressure differences, the sensor provides highest accuracy and long-term stability. The evaluation kit consists of a USB stick connected to a PCB on which an SDP3x differential pressure sensor is already attached. The included flow element can be easily affixed to the kit with two screws and then directly connected to the gas flow. Detailed information about the flow element can be found in the application note.
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Static Pressure Meters
Portable dual port manometer accessory head for use with our modular multimeters (DMMs) and instruments. Measures gas pressure, static pressure and pressure differential. The ADMN2 includes a zero adjust and the Auto Power-Off (APO) function to conserve battery life. Disable APO for data logging. The ADMN2 measures pressure between -60inWC and 60inWC (inches of water column) and -150.0 to 150.0 mBar. The ADMN2 also measures P1 or P2 pressure readings and calculates the difference between P1 and P2. Take static pressure measurements using the resolution mode of 0.01inWC or 0.01mBar.
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Residential/Commercial Combustion Analyzer w/ NOx Sensor
C165+N
UEi Test & Measurement Instruments
Backed by UEi Service+ to give up to 6 years’ warranty, next day recertification, and a reduced cost of ownership. The C165+ Residential/Commercial Combustion Analyzer is easy to use with a rugged design, multiple sensor protections, altitude compensation and differential pressure. Prints to optional printer and wireless App. The new LINK feature connects the included wireless pipe clamp temperature probes and other optional probes to the C165+. Essential information for installing and maintaining furnaces and boilers all in one device.
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Flow Meter
V-Cone
The V-Cone Flow Meter is an advanced differential pressure instrument, which is ideal for use with liquid, steam or gas media in rugged conditions where accuracy, low maintenance and cost are important. With its DP built-in flow conditioning design, the V-Cone is especially useful in tight-fit and retrofit installations in which the long runs of straight pipe required by Orifice Plates, Venturi Tubes, and other technologies are either impractical or unavailable.
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Pressure Transmitters and Differential Pressure Transmitters
Fuji Electric has long delivered electronic transmitters, incorporating the micro-capacitance silicon sensor, to our customers worldwide.The FCX-AIII series transmitters feature compact design, high accuracy and performance, long-term stability. They also offer wide measuring ranges and provide a variety of diaphragm materials.
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Pressure Gauges
All of our pressure gauges are controlled by micro processors to guarantee the highest accuracy. They determine absolute pressure, negative pressure or differential pressure in air and liquids devices perfect for a research and development environment. At PCE, you can find a high-quality pressure gauge which is suitable for extreme operating environments and meets the highest industry standards. They can even be used in small places, little holes, tubes or pipes. Some pressure gauge series have the capability to transfer data to a computer, a printer or a storage device.
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Manometers
GAOTek has developed advanced manometers that are high quality, affordable, and accurate. They are versatile instruments designed for the measurement of different pressure levels. We have a wide variety of manometers available for measuring the pressure of both liquids and gases whilst maintaining ease of use. Manometers are used as a pressure instrument and for calibration of other instruments. They can be used to measure gauge pressure, differential pressure, and absolute pressure and are generally used to measure pressures as high as 100 inches of 2.95 Red Fluid (10.65 PSI). Our products are designed to bring users the best experience when it comes to measurement, emphasizing effectiveness and efficiency above all else, and are for sale to the United States, Canada and globally.
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Clear Room Logger Transmitter
HD50CR
The HD50CR is the ideal solution for monitoring of differential pressure, temperature and humidity in Clean Room applications.
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Flex-Tube U-Tube Manometer
1222
These inexpensive manometers measure positive, negative and differential pressures. Dwyer Flex-Tube U-Tube Manometers combine the inherent accuracy of the simple "U" Tube with the durability of tough, long-lasting plastic construction. Columns are of .375" O.D. flexible and shatter proof clear butyrate tubing.
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Explosion-Proof Differential Pressure Switch
H3
Explosion-proof, heavy duty, industrial unit has patented and unique new design which provides sensitivity to differential pressures as low as 10 inches of water (254 mm w.c.), yet handles total pressure of 1500 psi (103 bar). Unlike common differential pressure switches that use a piston-type motion transfer, the Series H3 utilizes a rotary motion transfer shaft that prevents a change in total pressure from causing a setpoint shift.
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True Airspeeds
These true speed indicators are differential pressure indicators that measure the difference between static and total pressure produced by ram air from the pitot. The indicated airspeed can be corrected for changes in altitude by turning the knob to align the outside air temperature with the altitude. The moveable airspeed scale will then show the actual, or true, airspeed.
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Air Leak Testers
Air Leak Tester is the automatic leak detector detects any leaks by the minute change of differential pressure and conducts OK/NG judgment. Ideal to be built into a production line for a labor saving and a quality control purpose.
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OEM Differential Pressure Switch
MDS
The Series MDS Pressure Switch is designed with a double diaphragm to protect false actuation due to shock and vibration. This low cost pressure switch has a minimum 20 million cycle life expectancy, and an extremely fast response time, making this an ideal device for OEM orders
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Pressure Measurement
Advanced Thermal Solutions, Inc.
Instruments for Measuring Differential Pressure and Pressure Drop in Electronic Enclosures.
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Magnesense Differential Pressure Transmitter
MS
The Series MS Magnesense Differential Pressure Transmitter is an extremely versatile transmitter for monitoring pressure and air velocity.
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Square Root - Gauge Line Error Indicators
Parker PGI's SRE6 and GLE6 Indicators are designed to quantify Square Root and Gauge Line Errors in natural gas orifice flow measurement. They identify inaccuracies caused by compressor-induced pulsation and differential pressure discrepancies.
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XP2i Digital Pressure Gauge
AMETEK Sensors, Test & Calibration
We provide some of the world’s most popular XP2i digital test gauges for a variety of applications and markets. Included are intrinsically safe "percent of reading" gauges, process gauges, differential pressure gauges, panel mounted gauges, and gauges specifically designed for use in the maritime industry. Whether you’re looking for a gauge with long battery life to mount in hard to reach locations, a gauge to collect and store readings in the field in extreme conditions, or one that doesn’t require recalibration for up to three years, we have the perfect gauge for you.
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Pressure And Temperature Measuring
ESS3 series
The devices of the ESS3 series are used to measure and save the pressure, differential pressure, temperature, and quantity in supply networks for gas, water, and other media. The portable data loggers with battery backup saves the pressure history for up to several years. They can also be used in hazardous areas (Zone 1).
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Pneumatic Comparator
Huaxin Instrument (Beijing) Co., Ltd
The vacuum pressure comparator is fitted with a differential pressure port that enables connection of gauges under test by hose.





























