Differential Pressure
pressure measurement relative to the surrounding atmospheric pressure.
See Also: Pressure, Absolute Pressure
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Product
Manometers
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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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Product
Large Diaphragm Differential Pressure Switch
1630
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Our highest precision conventional large diaphragm pressure switch provides maximum dependability. In addition, it incorporates a visible set point indicator for maximum convenience. UL and CSA listed, FM approved for general service, these switches are suitable for most applications in air conditioning and industrial service.
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Product
Differential Pressure Meters, Micromanometers
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Unprecedented differential pressure measurement accuracy (yet a wide range) for critical pollutant pathway monitoring, ventilation assessment, filter performance testing, general HVAC measurement and many other applications. GrayWolf AdvancedSense meters include auto-ranging dual DP sensors, as well as auto-zeroing (to maintain low-end precision). GrayWolf DP instruments offer broad measurement ranges, yet exceptional sensitivity. They may be utilized for spot checks and for long-term trending of a variety of pressure measurement applications that require high reliability. Choose from the cutting edge AdvancedSense Pro, AdvancedSense BE or the new Zephyr III Meter (which replaces the workhorse “classical” Zephyr II in July 2020).
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Product
High Line Pressure Variable Reluctance Pressure Sensor to 10,000 psid
DP360/DP363
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The DP360 can be calibrated for a full scale as low as ±50 psid while withstanding high static line pressure. Low differential pressure may be measured at static pressures as high as 10,000 psig with a maximum 3% FS zero shift error.
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Product
Residential/Commercial Combustion Analyzer Kit w/ Printer
C165+KIT
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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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Product
Pressure Transducer Module
PTM-1000
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Advanced Thermal Solutions, Inc.
The PTM-1000, Pressure Transducer Module, is a four-channel test instrument for measuring differential pressure in enclosures where air flow integrity is critical to proper performance. As the demand for more energy efficient cooling grows, the need for measuring the pressure at each source of heat generation will follow.
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Product
Differential Pressure Transmitter
DPA Series
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Adtek has multiple transmitters which can be applied on different types of work environment. To have a better quality of life, buildings with central centilation system (CVS) become a trend, so we recently developed a new product, DPA, indoor differential pressure transmitter. The users can set up the measured range according to the actual use, and make zero adjustment for the differential pressure. Besides being equipped with regular analog outputs, we also added RS-485 output to DPA which is a simple and low cost communication tool connecting with monitoring system.
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Product
Digital Pressure Gauges
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Digital gauges with alarms, DC loop-powered gauges, differential pressure gauges, and a variety of features. They provide fast results with clear readability and very high accuracy.
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Product
Pressure Switches
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Ashcroft® pressure switches are provided in a variety of configurations to meet most installation requirements in nearly every industry. A long list of choices include differential pressure switches, explosion-proof pressure switches, NEMA 4 and NEMA 7 rated pressure switches as well as electronic pressure switches.
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Product
Barometers
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These barometers can be found in the section to measure absolute pressure, differential pressure in respect to the atmosphere and negative pressure. There are barometers such as the DB2 digital barometers that have an internal memory for up to 750 Barometers to measure absolute pressure, differential pressure in respect to the atmosphere and negative pressure. readings and an analogue output of 0 to 1 volts. These barometers are perfect to measure atmospheric pressure, also called barometric pressure, is an expression for the weight of air (atmosphere) due to the earth''s gravitational pull. This pressure at sea level is 1013.25 mbars (milibars).
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Product
XP2i Digital Pressure Gauge
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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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Product
Digital Pressure Gauges
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AMETEK Sensors, Test & Calibration
We provide some of the world’s most popular 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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Product
Manometers
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Manometers in gauge, absolute, and differential pressures with several unit options including millitorr, inches of water, mmHg Pa, kPa, mmH2O, psi and more. Accuracies up to 0.025% full scale.
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Product
Vane Anemometers
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The DPM ANE™ is a unique frictionless design that has no moving parts and no sensing electronics. This robust and durable handheld bi-directional anemometer can be used to measure differential pressure, air velocity and volume, compatible with the Mini Hood Kit, when connected to a suitable micromanometer. With no moving parts and high quality construction, it is almost indestructible in normal day to day usage.
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Product
Pressure Transmitters and Differential Pressure Transmitters
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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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Product
Ultra Low Pressure Transmitter
P532
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Validyne's P532 Pressure Transmitters are ideally suited for measuring extremely low liquid and gas pressures in industrial applications. Full-scale differential pressure ranges from 0.10 H2O to 2 H2O with line pressure rating of 100 psig, and ranges of 2 H2O to 3200 psid with line pressures up to 3200 psig are offered. Gauge pressure ranges start at 0.10 H2O and absolute pressure from 0.08 psia full-scale. This unique design, which utilizes a diaphragm-type variable reluctance pressure sensor, provides many outstanding advantages including:
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Product
Ultra-thin Mass Flow Controller
DZ-100
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The DZ-100 inherits the same CRITERION™ technology—a differential pressure detection system for laminar viscous flow ranges—used on HORIBA STEC’s MFC, the D500. This innovative technology controls the mass flow of various gases with high precision. As with the D500, the user-configurable DZ-100 supports multi-range and multi-gas applications. The compact design of the MFC reduces the internal volume of the internal gas flow path, and the optimized control algorithm improves response characteristics. It uses a compact CPU with high processing capacity, and the piezo drive circuit and control CPU are installed in the MFC module while the power supply components are housed in a separate small control box. Up to four MFC modules can be controlled by connecting them with the dedicated miniature connectors.
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Product
Pressure Micromanometer – Thermometer
HD2164.0
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Portable pressure micromanometer thermometer with 2000 mbar built-in sensor. It measures absolute, relative and differential pressure, as well as temperature.
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Product
Very Low Pressure Variable Reluctance Sensor
DP103
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The Validyne DP103 is designed for exceedingly low differential pressure measurement applications where high accuracy is required under rough physical conditions. With full scale ranges down to -0.008 psid (-0.56cm H2O), this instrument is being used in the measurement of very low flow rates of gases where symmetrical pressure cavities are required for dynamic response. It is also used in very small leak detection and pressure null detection systems.
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Product
Micromanometer-Thermometer – 20 mbar
HD2114.0
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Portable pressure micromanometer thermometer with 20 mbar built-in sensor. It measures absolute, relative and differential pressure, as well as temperature.
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Product
High Line Pressure Transducer with Digital Interface
P368
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The Validyne model P368 is a digital differential pressure transmitter designed for high line pressures and industrial pressure measurement applications. Full scale ranges of 8 psid to 10,000 psid are available. The on-board microprocessor provides high accuracy and improved stability in changing thermal environments. Communication via RS485, USB or CanBus provides remote zero and span adjustment as well as digital pressure readings in engineering units.
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Product
Magnehelic Differential Pressure Gage
2000
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Select the Magnehelic gage for high accuracy--guaranteed within 2% of full scale--and for the wide choice of 81 models available to suit your needs precisely. Using Dwyer's simple, frictionless Magnehelic gage movement, it quickly indicates low air or non-corrosive gas pressures--either positive, negative (vacuum) or differential
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Product
Clear Room Logger Transmitter
HD50CR
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The HD50CR is the ideal solution for monitoring of differential pressure, temperature and humidity in Clean Room applications.
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Product
Battery Data Logging Device
FST-AM
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Foresight Electronics Co., Ltd.
A data logger, is an electronic instrument that records measurements at set intervals over a period of time. Depending on the particular data logger, measurements can include: air temperature, relative humidity, AC/DC current and voltage, differential pressure, time-of-use (lights, motors, etc.), light intensity, water temperature, water level, dissolved oxygen, soil moisture, rainfall, wind speed and direction, leaf wetness, pulse signals, room occupancy, plug load, and many more.
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Product
Cabin Altitude Differential Pressure
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The inner scale displays the difference in pressure between the inside and the outside of the cabin in pounds per square inch (PSI).
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Product
Temperature Switches
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Ashcroft® temperature switches control high and low temperature operating limits in a broad range of applications. Simple and easy to install, they are available in a variety of configurations, including NEMA 4 and NEMA 7 temperature switches, OEM temperature switches, watertight temperature switches, explosion-proof temperature switches and differential pressure switches.
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Product
General Performance Pressure Transducers And Switches
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These general performance Baratron® capacitance manometers are available as pressure transducers with an analog signal proportional to absolute or differential pressure, or as switches with relay outputs based on pressure.
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Product
Barometer-Manometer-Thermometer
HD2114B.0
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Barometer-Micromanometer-Thermometer with built-in barometric sensor (600…1100 mbar) for absolute, relative and differential pressure and temperature measurements.
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Product
AD06A Baratron® Differential Pressure Sensor
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AD06A Baratron® differential pressure sensors are single-ended dual-electrode/AC bridge devices that are extremely stable and designed to minimize the effect of temperature changes. Full Scale ranges are available from 25,000 Torr down to 0.1 Torr. Each range measures down to 1 part in 106 Full Scale with selected percent Reading accuracy limited by this resolution and with accuracies ranging from 0.25% to 0.05% of Reading. They are constructed of Inconel® and stainless steel, allowing use with many wet, dirty, or corrosive gases.
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Product
Pressure Controllers & Transducers
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Alicat Scientific, Incorporated
Fast pressure controllers keep your process stable and repeatable. Alicat offers pressure controllers for use in flowing, dead-ended, or vacuum applications. Dual-valve models for closed volumes eliminate the need to continuously bleed expensive process gases. Instruments are available with absolute, gauge, or differential pressure sensors for pressure control as high as 3000 PSIA/PSIG (or 150 PSID) and as low as 2 inH₂O.





























