br new high quality Features: This module adopts high precision AD sampling chip 0-40KPa air pressure sens. It can connect 2.5mm soft tube detect the water level other air pressure. Adopting 5K OHM resist bridge sens, it has compact size easy to install. Barometric Pressure Sens Module only, other accessies demo in the picture is not included! Specification: Voltage: 3.3-5V Pressure: 0-40KPa Dimensions: 18x13mm or 0.71x0.51inch(2mm fixing hole) Col: Red Quantity: 1 Pc Note: 1.Please allow 0-1cm err due to manual measurement. pls make sure you do not mind befe you bid. 2.Due to the difference between different monits, the picture may not reflect the actual col of the item. Thank you! Package includes: 1 x Barometric Pressure Sens Module (without retail package)