The ATM420 was developed in response to recurring customer needs for a clearer and more flexible way to monitor room pressure.
More than ten years ago, Hitma started developing a solution that translated technical pressure measurements into information that could be understood at a glance. What began with customer feedback and a programmable display evolved into the ATM420: a flexible room pressure monitoring solution that can be adapted to different applications and user requirements.
Originally developed for the Benelux market, the ATM420 has since found its way into international projects as well. To support customers and distribution partners outside the Benelux, RoomPressureMonitor.eu was created as the dedicated international platform for the ATM420.
The ATM420 is developed, programmed and assembled by Hitma in the Netherlands.
Read the full storyBuilt for reliability – 100% tested before shipment
Every single ATM420 system is fully assembled, configured, and 100% tested in-house at Hitma before it leaves our facility. This ensures each system meets the highest quality standards and performs flawlessly from day one. Our uncompromising quality control guarantees a system you can trust, even in the most critical environments.
I have a requestThe ATM420 is more than just a full-color touchscreen display — it’s a complete, plug-and-install pressure monitoring solution, designed for maximum flexibility and ease of use.
Delivered and tested as a full set
Easy wiring with clear manual
You ony need a power supply and cables
Visual alarm
Acoustic alarm
Code protected menus
Auto-zero function
2x analogue outputs
Optional: calibration certificate
Easy to understand menu
Available in: English, French, German, Dutch, Italian
Other on request
Easy installation
Selectable in menu
Second or third slave display on request
​Calibrated on 5-points
Certifcate on company/customer name
Paper and/or digital