Sensirion integrated differential pressure sensors – in distribution

Sensirion integrated differential pressure sensors – in distribution

New Products |
Stable, highly accurate differential pressure sensors, based on Sensirion’s CMOSens technology, target building automation applications inlcuding heating, ventilation and air-conditioning (HVAC)
By Graham Prophet


Distributor RS Components has the SPD800 series of CMOS technology digital and analogue differential pressure sensors for high-volume applications. The sensors have been designed to measure the pressure of air and non-aggressive gases and deliver accurate and stable results covering a range of up to ±500 Pa (±5 millibars or ±2 inches of water), even at very low differential pressures.


CMOSens technology integrates a sensor element and all the necessary signal conditioning electronics – including analogue and digital signal processing – on a CMOS chip. The SDP800 series sensor element, which uses flow-through technology to measure differential pressure, together with the on-chip signal processing and digital calibration, delivers high accuracy with no offset drift, right down to the lower end of the measurement range. These new CMOSens-based sensors largely overcome the limitations in offset drift and accuracy of traditional static or dynamic differential pressure sensors commonly used in HVAC applications. In conjunction with low-cost advantages, this makes them an attractive alternative for measuring differential pressure and airflow volumes in modern HVAC systems.


Available in the SDP800 series are the 4-pin ±500 Pa SDP800-500PA, and the 4-pin ±125Pa SDP800-125PA. The sensors also feature a two-wire digital interface for easy connection to microcontrollers.An evaluation kit enables easy and fast sensor evaluation via PC test software, connected via USB cable.


RS Components;



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