ITEM NAME:Digital Barometric Pressure Sensor Module Liquid Water Level Controller boarJC+ Product Introduction: Size: 19*18mm (2mm fixing hole) Voltage: 3.3-5V Pressure: 0-40KPa This module adopts high precision AD sampling chip and 0-40KPa air pressure sensor. And it can connect 2.5mm soft tube and detect the water level and other air pressure Adopt 5K ohm resistor bridge sensor, and specific air pressure value needs calculating..This module adopts high precision AD sampling chip and 0-40KPa air pressure sensor. And it can connect 2.5mm soft tube and detect the water level and other air pressure. Adopt 5K ohm resistor bridge sensor, and specific air pressure value needs calculating.