The new generation of differential pressure measurement
Every pascal counts
Combining precise measurement, seamless commissioning, and reliable control capabilities to enhance building automation performance.
Designed for modern HVAC and ventilation applications, the DH400 Series offers a versatile and reliable solution for measuring differential pressure and volumetric flow while supporting precise system control. Flexible configuration options, including PID control and Modbus communication, allow seamless integration into a wide range of systems. An optional backlit LCD display provides clear local indication of process values, and intuitive onboard controls enable rapid setup and commissioning, helping to reduce installation time and costs.
The right solution for every requirement
Measure differential pressure and volume flow. Regulate differential pressure.
Ensures stable pressure conditions throughout the system
Reliable differential pressure measurement enables the monitoring of filters and fans in HVAC systems. In addition, the DH400 series is suitable for monitoring ventilation ducts in buildings as well as in production and clean rooms.
Precisely measure and monitor volume flow
Designed for HVAC applications, the DH400 Series enables precise measurement and monitoring of volumetric airflow in ventilation ducts, supporting optimal indoor air quality and energy-efficient system operation.
Precise and efficient differential pressure control
The integrated PID controller ensures precise and energy-efficient regulation of ventilation systems. By directly controlling frequency converters and damper actuators, the DH400 Series helps optimize airflow, reduce energy consumption, and improve system performance.
Precise across the entire measuring range
The DH400 Series is built on advanced MEMS (Micro-Electro-Mechanical Systems) technology, providing highly accurate, stable, and reliable measurement performance while maintaining a compact and robust design.
The precise bidirectional differential delivers pressure measurement over the complete measuring range. Eight configurable pressure ranges can be selected directly on the device, allowing seamless integration into diverse HVAC and industrial applications while providing exceptional flexibility and ease of use.
Technical data
* preliminary values, as of 09/2026. Approvals and compliance depend on the version.
Analog versions from Q1/2027. Modbus versions planned from Q3/2027.