# Ashcroft \(Heise\)

> Heise is a trusted source for precise pressure measurement instruments around the world\. To help keep your business running according to your exacting standards\.

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## Pages
- [Heise Representatives](https://heise.com/heise-representatives/)
- [CAGE Code](https://heise.com/cage-code/)
- [Frequently Asked Questions](https://heise.com/faq/)
- [Home](https://heise.com/)
- [About](https://heise.com/about/)

## Products
- [CC Dial Pressure Gauge](https://heise.com/products/pressure-gauges/cc-dial-pressure-gauge/): The Heise\<sup\>®\</sup\> model CC precision pressure gauge yields consistent, reliable accuracy through the use of precision machining and refined Bourdon tube technology\. Pointer rotation of 300 degrees with up to 1500 divisions offers high resolution to easily support tight tolerances\. As a mechanical instrument, the gauge does not require a power supply\. The gauge is simple to operate, easy to troubleshoot and can be readily flushed or purged to remove foreign matter or trapped gas\. That’s why the Heise\<sup\>®\</sup\> precision dial gauge is the \#1 choice in ASME B40\.100 grade 4A precision mechanical pressure instrumentation\.
- [CMM Dial Pressure Gauge](https://heise.com/products/pressure-gauges/cmm-dial-pressure-gauge/): The Heise\<sup\>®\</sup\> model CMM precision pressure gauge yields consistent, reliable accuracy through the use of precision machining and refined Bourdon tube technology\. Pointer rotation of up to 660 degrees with up to 1600 divisions offers high resolution to easily support tight tolerances\.  As a mechanical instrument, the gauge does not require a power supply\. In addition, this mechanical instrument is simple to operate, easy to troubleshoot and can be readily flushed or purged to remove foreign matter or trapped gas\. That’s why the Heise\<sup\>®\</sup\> precision dial gauge continues to be the \#1 choice in ASME B40\.100, grade 4A precision mechanical pressure instrumentation\.
- [CM Dial Pressure Gauge](https://heise.com/products/pressure-gauges/cm-dial-pressure-gauge/): The Heise\<sup\>®\</sup\> model CM precision pressure gauge yields consistent, reliable accuracy through the use of precision machining and refined Bourdon tube technology\. Pointer rotation of up to 350 degrees with up to 1500 divisions offers high resolution to easily support tight tolerances\. As a mechanical instrument, the gauge does not require a power supply\.  In addition, this pressure gauge is simple to operate, easy to troubleshoot, and can be readily flushed or purged to remove foreign matter or trapped gas\. That’s why the Heise\<sup\>®\</sup\> precision dial gauge continues to be the \#1 choice in ASME B40\.100, grade 4A precision mechanical pressure instrumentation\.
- [3084, 3086, and 3089 Digital Pressure Gauge](https://heise.com/products/digital-pressure-indicators-handheld-calibrator/3084-3086-3089-digital-pressure-gauge/): The Heise\<sup\>®\</sup\> 3084, 3086, and 3089 digital test gauges are highly accurate test instruments providing exceptional features and performance\. The full scale total error \(TEB\) includes the effects of linearity, hysteresis, repeatability and temperature from 0 to 150°F\. Silicone MEMS sensor technology provides accuracy and long term stability demanded by test Iinstrumentation users\. An ideal indicator for test and measurement applications\.
- [QTHP\-Kit Hydraulic Hand Pump](https://heise.com/products/volume-controllers-hand-pumps/qthp-hydraulic-hand-pump/): The QTHP is a portable hydraulic hand operated pump capable of generating up to 5,000 psi \(345 bar\) using liquid media including water, alcohol, oils and hydraulic fluids\.

## FAQs
- [What is the CAGE code for Heise?](https://heise.com/faq/cage-code/)
- [What is the difference between a vacuum and an absolute pressure instrument, and when do I select one vs the other?](https://heise.com/faq/when-adding-a-diaphragm-seal-to-an-instrument-is-there-any-change-in-the-stated-accuracy-2-2/)
- [When reading accuracy specifications, what is the difference between “full scale” and “span” \(i\.e\. ±0\.1% of Span vs ±0\.1% of Full Scale\)?](https://heise.com/faq/when-adding-a-diaphragm-seal-to-an-instrument-is-there-any-change-in-the-stated-accuracy-2/)
- [What is the difference between “accuracy” and “tolerance”?](https://heise.com/faq/when-adding-a-diaphragm-seal-to-an-instrument-is-there-any-change-in-the-stated-accuracy/)
- [What is the difference between NPSM and NPT instrument connection threads?](https://heise.com/faqs/what-is-the-difference-between-npsm-and-npt-instrument-connection-threads/)

## Videos
- [Heise \-  PTE\-2 Handheld Calibrator Datalogging Manual](https://heise.com/video/ashcroft-ate-2-datalogging-manual/)
- [Heise \- PTE\-2 Handheld Calibrator Data Logging SD](https://heise.com/video/ashcroft-ate-2-data-logging-auto/)
- [Heise \- PTE\-2 Handheld Calibrator \- H2O Reference Temperature](https://heise.com/video/ashcroft-ate-2-h2o-refence-temperature/)
- [Heise \- PTE\-2 Handheld Calibrator Power Supply Operation](https://heise.com/video/ashcroft-ate-2-power-supply-operation/)
- [Heise \- PTE\-2 Handheld Calibrator Tare Function](https://heise.com/video/ashcroft-ate-2-handheld-calibrator-tare-function/)

## Product Shock \& Vibration
- [Shock: 10g per 11 ms\.](https://heise.com/shock-vibration/shock-10g-per-11-ms/)
- [Vibration: 10g RMS within 20 to 2000Hz](https://heise.com/shock-vibration/vibration-10g-rms-within-20-to-2000hz/)

## Content Type
- [Data Sheets](https://heise.com/product-resource-content-type/data-sheets/)
- [Installation \& Maintenance](https://heise.com/product-resource-content-type/installation-maintenance/)
- [Product \& Technical Information](https://heise.com/product-resource-content-type/product-technical-information/)
- [Selection Guides](https://heise.com/product-resource-content-type/selection-guides/)

## Product Resource Categories
- [Test Instruments](https://heise.com/product-resource-category/test-instruments/)
- [Digital Gauges](https://heise.com/product-resource-category/digital-gauges/)

## FAQ Category
- [Thermowells](https://heise.com/faq-categories/thermowells/)

## Optional
- [Sitemap index](https://heise.com/sitemap_index.xml)