The 1-101400-01 part of Sensirion is a SDP3x Digital Differential Pressure Sensor. It is a powerful, durable and precise sensor used to measure changes in pressure for a variety of different applications. It is capable of measuring pressure differences up to 500 Pa and offers a resolution down to 0.02 Pa thanks to its differential measuring principle. The SDP3x was designed to be a robust, efficient and accurate device for use in HVAC, Industrial Automation, and Medical applications. Features include a wide operating range from -200 to +1000 hPa, a fast response time of up to 5 ms, and an extremely low power consumption for battery operated applications. The SDP3x is also certified for Automotive applications.