Differential Pressure Module for use with Windows Tablets/Laptops/PCs. A highly accurate DP unit with built-in auto-zeroing, dual auto-ranging differential pressure sensors. Connect to WIN10 (or WIN8) tablets/laptops/PCs with the WolfSense LAP app for display, data-logging, associated note retention, on-board help files, and much more. AD-USBA-USBMIC USB-A to micro USB adapter included for computer connection. The WSLAP app also converts pitot tube readings to air velocity and volume air flow in user selectable units when a pitot tube is attached via dual tubing (not included). 7 pin female rugged push-pull socket for optional RH-AS2 temp/%RH probe. REQUIRES WSLAP SOFTWARE APP (not included). WolfSense PC data download and reporting software supplied on USB key at no charge with WSLAP purchase.