The 1-101532-01 is a sensor module produced by Sensirion. It is a digital differential pressure sensor that measures air pressure and flow with high accuracy, reliability, and stability. It is a tiny, self-calibrating, analog-output module that responds to air pressure and flow. The device has a sensing range from 0-300 hPa, with a resolution of 0.0064 hPa. It features low power consumption and low acoustic noise emission for easy integration into any measurement system. It is calibrated for ambient air pressure with a accuracy of ±1.7 Pa and temperature coefficients of ±0.05 Pa/°C.