This module adopts high precision AD sampling chip and 0-40KPa air pressure sensor. It can also detect water level and other air pressure. Technical data: Voltage: 3.3-5V Pressure: 0-40KPa For non-corrosive gases Standard signal output, wide temperature compensation Operating temperature range: -20 ~ 100 ℃ Dimensions: 19*18mm (2mm fixing holes) Air inlet diameter: 2.5 mm 5K ohm resistor onboard forms bridge sensor, specific air pressure value needs calculating. https://elecena.pl/product/22626997/3-3-5v-digital-barometric-air-pressure-sensor 2023-02-23 https://elecena.pl/product/22626997/3-3-5v-digital-barometric-air-pressure-sensor 2025-10-28