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Highest Accuracy Pressure Gauges

The Legendary Heise® Precision Pressure Gauge

The need for an ultra-high accuracy dial-mechanical pressure gauge is here to stay. Whether the application is a critical process, redundant monitoring or as a master calibration gauge, the Heise® pressure gauge delivers ±0.1% FS accuracy without the need for power or the threat of spark production in hazardous areas. Available in ranges from 0-12 psi to 0-100,000 psi, Heise® precision pressure gauges offer maximum resolution in dial sizes from 6 to 16 inches and in single or double revolution pointer excursions. To learn more about the three model types, click CC, CM or CMM.

Pressure Instruments with Diaphragm Seal

Keep Your Instruments Safe From Hostile Media

Ashcroft® pressure instruments can be configured with media isolators specifically engineered for harsh or corrosive process liquids and gases. Whether the instrument is a dial gauge, switch, digital gauge or transmitter, there is an Ashcroft® diaphragm seal or isolation ring that can be mated for complete media protection.

New Electrical and Pressure Connections for G2 Transducer

More Choices Mean Greater Utility

To suit a wider variety of installation requirements, the Ashcroft® G2 pressure transducer is now available with a larger selection of electrical and pressure connections. Read more about the new additions and review the complete offering in the updated G2 data sheet.

Customized Transducers for OEMs

OEM Pressure Transducers...Modified & Tested to Your Requirements

When "off the shelf" pressure transducers won't satisfy your OEM requirements, contact Ashcroft Inc. and put our customization services to the test. Our expert engineering staff and a complete test facility allow us to offer product modifications and special testing to meet your specifications. Read more about our unique capability...


Put a Pressure Test Lab in Your Hands...

The ATE-2 handheld calibrator raises the bar with a new design and added features, including a USB port, SD card, backlit LCD and an onboard loop power supply. Like the original, the ATE-2 accommodates two Quick-Select™ modules to measure pressure in ranges from 0.25 inches of H2O through 10,000 psi and temperature over a wide range with RTDs or thermocouples. Equipped with input jacks for current and voltage, up to three measurements can be displayed simultaneously. In addition, a variety of menu-driven calibration and recording features is provided through simple front panel commands.

The A Series Compact Stainless Steel Pressure Switch

The A Series Compact Pressure Switch...Tougher than Ever!

A harsh operating environment is no match for Ashcroft's A Series pressure switch. All 316 stainless steel construction, a weatherproof IP67 enclosure and an operating temperature of -40 to 100 degrees C (-40 to 212 degrees F) make this compact switch the ideal choice for a wide variety of industrial and OEM installations.

Types 1082 & 1084 test gauges

Put Ashcroft® to the Test

Any calibration you perform is only as good as the master instrument you use for comparison. That's why Ashcroft has carefully engineered the Type 1082 test gauge and 1084 test gauge for sustained accuracy and high reliability.

Differential Pressure (d/p) Instruments

How You Measure the Difference Can Make the Difference

Whether you're controlling room air pressure or monitoring flow across a membrane, Ashcroft has the right differential pressure (d/p) instrument for your application. Our broad selection of gauges, transmitters, switches and precision indicators includes capabilities from very low d/p to high static pressure containment.

High Static, Low DP Transmitter

High Pressure Wet-Wet dp Transducer

The new Ashcroft® GC55 wet-wet differential pressure transducer monitors high differential pressures through 300 psid in HVAC hydronic cooling and heating systems, pump controls and a variety of other applications.

Pressure Gauge with Unique Panel Mount Design

Innovative Panel Mount Design

Ashcroft® Type 1005P general purpose utility gauges are now available with a unique panel mount conversion kit; simply snap the gauge into the panel mounting sleeve and fasten it to the panel with the bracket provided. This unique economical design facilitates easy installation and quick change-out.

Ultra-compact, multi function

Introducing the New Ashcroft® 3-in-1 Miniature Pressure Sensor

The New Ashcroft® GC30 and GC31multi-function pressure sensors serve as a transducer, digital indicator and pressure switch. Measuring only 1.2 inches square, these ultra-compact sensors feature a remote signal, local reading, pressure control and much more.

Training & demonstration videos on YouTube

Ashcroft Goes Video...

We're happy to introduce the first in a series of Ashcroft product demonstration and training videos hosted on YouTube. To access our video presentations, click here to visit our YouTube channel. More will be added, so don't forget to check-in periodically to see what's new!

1009 & 1279 PLUS 90 x 90 72

Eliminate Pointer Flutter Without Liquid Fill

The Ashcroft® PLUS!™ Performance feature stabilizes pointer motion in the presence of pump pulsation and high vibration. This unique attribute also inhibits movement wear which greatly extends the life of the gauge. The PLUS!™ performance option is available on a variety of Ashcroft® pressure gauges, including the Type 1009 PLUS!™ small and large diameter industrial gauges and the Type 1279 Duragauge® PLUS!™ process gauge.

DXLdp loww pressure d/p transmitter

Low Pressure Readings You Can Take to the Bank

The innovative Ashcroft DXLdp low differential pressure transmitter is a favorite for critical air flow, room pressure and air handler applications. Equipped with the exclusive Ashcroft SpoolCal option, this transmitter can be validated, zeroed and calibrated while on line, without having to disconnect the pressure tubing.

Get the Features You Need at the Right Price

Industry's Best Selection in Process Gauges

Ashcroft® 1200 series pressure gauges offer specific capabilities for nearly every type of process. In basic applications, the rugged Ashcroft® Type 1259 is the economical choice for years of dependable service. In more rigorous installations, the Type 1279 Duragauge® takes-on harsh pressure media, fire hazard or extreme cycle volumes. Add pulsation and vibration, and the Type 1279 Duragauge® PLUS! offers patented technology to dampen pointer flutter without the need for liquid fill.

Ultra-Compact Design

All the Best Features, Right at Your Fingertips!

Ashcroft's new pressure transmitters feature a digital display for local indication and a user "turndown" capability for re-ranging. Two ultra-compact configurations are now available: GC51 Gauge and compound ranges to 7500 psi GC52 Wet-wet D/P with ranges from 0/4 to 0/400 Inches W.C. and bi-directional ranges. 

Ash Bul AHR-1_Page_1 90x90 72

Ashcroft Product Guide for HVACR

Our industry expertise not only helps us design the right devices, but helps us to lead you to the best choices for your application requirements. So to help make the selection process easy, we've introduced a new industry product guide for the Heating, Ventilation, Air Conditioning and Refrigeration industry. Click here to view the HVACR bulletin on line or order a free printed copy by email.

Explosion Proof or Intrinsically Safe

Explosion Proof and Intrinsic Safety for Hazardous Environments

Monitoring the pressure of combustible liquids and gases with an electronic instrument is a dangerous business. You'll need to choose a trustworthy device...and that's where we can help. Ashcroft® Types A2X Pressure Transmitter (explosion proof) and A4 Pressure Transmitter (intrinsically safe/non-incendive) are specifically designed and tested for use in hazardous environments.

Type 1009 Duralife gauge with tubing connection

A New Way to "Get Connected"

For easy installation into tubed systems, Ashcroft® 2½" and 3½" Type 1009 Duralife® stainless steel pressure gauges are now available with a ¼" or 6mm OD tubing connection in full scale ranges up to 7500 psi. This threadless, straight tube design allows the 1009 to be connected directly to pressure tubing via industry standard ferrule type mechanical grip couplings. Please see our datasheet for more information.

510 diaphragm seal for media isolation

New Seals Shield Your Instruments from Caustic Media

Ashcroft® 510 & 511 diaphragm seals are the newest addition to our expansive line of Ashcroft® media isolators. These economical, all welded seals protect pressure gauges, transmitters, switches and other instruments against the potentially harmful affects of caustic media. Click the blue link to learn about features, available ranges, wetted materials and more.

1130 Series Differential Pressure Gauges

Our Best Selling dp Gauge

Ashcroft®1130 Series dp gauges offer a high quality, cost effective solution for a wide variety of differential pressure measurement applications. Choices of dial sizes from 2 to 6 inches, ranges from 0.6" H2Od through 150 psid and an optional switch feature make these gauges the practical choice for nearly any installation. Learn more about types 1130, 1131, 1132, 1133 & 1134.

Large digital display, long battery life

Monitor Pressure the Easy Way with the New DG25

With a 5 full digit display and accuracy up to ±0.25% FS, the new Ashcroft® DG25 digital pressure gauge offers quick, high resolution readings in a 2.73" (69.36mm) diameter IP67 enclosure. Standard features include selectable engineering units, min-max recall, tare, a list of agency certifications and much more. Click here to view more DG25 attributes and specifications.

Setting up transducer test on vibration table

Complete Test Lab Facility at Ashcroft Inc. World Headquarters

Our fully equipped product test center is outfitted with specialized test equipment to simulate weather, vibration, extreme temperatures and more. Read more about our expanded capabilities and how we can use them to help you…

GC52 Differential Pressure Transmitter Now Measures Flow!

dp Transmitter Adds Flow Measurement Capability

The Ashcroft® GC52 wet-wet differential pressure transmitter now includes push-button settings to allow the instrument to calculate direct flow readings by measuring dp across a restriction. In addition, a flow totalization counter can be activated to display the accumulated volume of passed fluid. A valuable addition to this remarkable instrument!


Ashcroft Product Guide for the Water Industries

With so many products to choose from, it's not always easy to pin-down the best instrument for for your installation. To help make your job easy, we've created a product guide specifically for the water treatment industry. Click here to view the bulletin on line.

Commercial/Utility Gauges for OEMs

All Gauges Are Not Created Equal

Ashcroft® commercial gauges offer OEMs a choice of economical pressure indicators, each specifically designed to balance the performance and cost requirements of every unique appication. ASME B40.100 Grade B ±3-2-3% accuracy, PowerFlex™ movementTrue Zero™ indication and the FlutterGuard™ option earn Ashcroft® commercial gauges industry's top spot for their quality, durability and value.

The Industry Leader for 160 Years

160 Years Strong

Since Edward Ashcroft produced his first steam gauge in 1852, our product offering has grown to include temperature instruments as well as our full line of electronic and mechanical pressure measurement devices. Read about our proud heritage and explore this site to learn more about our brands, products, worldwide manufacturing operations and global distribution network.

Front Flange Stainless Steel Pressure Gauge

Stainless Steel Never Looked So Good...

...or so affordable! The newly designed Type 1008S stainless steel pressure gauge offers a stainless steel case and wetted parts to stand up to the toughest applications. Two sizes, several mounting configurations and ranges from vacuum through 15,000 psi make it the easy choice for harsh environments or media.

GC-35 Multi-Function Pressure Sensor

More than Just Rugged Good Looks...

The GC35 is our latest innovation in pressure monitoring and control. Housed in a robust nickel plated cast aluminum enclosure and boasting a high over-pressure tolerance, this multi-function pressure sensor is the perfect fit for a wide variety of applications. The GC35 offers a useful combination of features, including a tri-color, LED GloBand™ indicator. Why do the colors change? Read more…

Pressure Instruments for Sanitary Installations

When You've Got to Keep it Clean

Ashcroft® sanitary pressure instruments are specifically designed for the unique requirements of pharmaceutical, biotech and food processing applications. Stainless steel sealed housings and welded, electropolished media isolators allow for chemical washdown and high temperature decontamination. Our broad selection of sanitary pressure instruments includes the Type 1032 gauge, G Series switch, 2032 Series digital indicators and the Type KS transducer. Download our sanitary product brochure...

Dual Seal Switches with CSA Rating

Dual Seal Flameproof Pressure Switches with CSA Rating

Ashcroft "dual seal" flameproof pressure switches are enhanced with a second diaphragm barrier to ensure pressure media containment in the unlikely event of a breach in the primary sensing diaphragm. The dual seal feature is available as the D2 option on Ashcroft Types B700, D700 and P-Series pressure switches, earning them a CSA rating. For more information about the dual seal option, read the Press Release and Product Information Page...

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Have a question...application, price, delivery? When you need it the Ashcroft ActionLine® at 800-328-8258.

When it's all about the highest possible accuracy...

Heise® precision pressure gauges, digital indicators and transducers offer state-of-the-art features with accuracies from +/- 0.1% to 0.02% FS. Check out the Heise® instrument line at

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