# Huion PenTech

## Overview

Huion uses the name "PenTech" for its EMR pen technology and even has version numbers to show how it has evolved over the years.

Much more here from Huion:

* [What is Huion Pentech 3.0 technology?](https://support.huion.com/en/support/solutions/articles/44001952712-what-is-huion-pentech-3-0-technology-)
* [Introducing Huion PenTech 3.0+ and PW550/PW550S](https://store.huion.com/posts/introducing-huion-pentech3.0+-pw550-pw550s)

## Huion PenTech history

<table><thead><tr><th width="178">Version</th><th width="146">Type</th><th>Description</th></tr></thead><tbody><tr><td>PenTech 4.0</td><td>Passive EMR</td><td>Adds a chip to the Stylus. Introduced in 2024 with the launch of the Kamvas Pro 19 and Kamvas Pro 27. Significant improvement over PenTech 3.x. Wider pressure range, much better pressure handling.</td></tr><tr><td>PenTech 3.0+</td><td>Passive EMR</td><td>Huion states:<br>- "more linear pressure sensitivity"<br>- "lower IAF"</td></tr><tr><td>PenTech 3.0</td><td>Passive EMR</td><td>Pressure now detected through a pressure sensor instead of relying on moving the ferrite core. This is a more reliable design and is how Wacom has been doing it for decades.</td></tr><tr><td>PenTech 2.0</td><td>Passive EMR</td><td>Pen no longer has battery. Pen gets power from the tablet.</td></tr><tr><td>PenTech 1.1</td><td>Active EMR</td><td>Pen has a rechargeable battery.</td></tr><tr><td>PenTech 1.0</td><td>Active EMR</td><td>Pen has a replaceable battery.</td></tr></tbody></table>


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