Extech sdl700 data logging digital manometer and pressure sensors extech sdl700 the extech sdl700 digital manometer records data on an sd card in microsoft excelreg format for easy transfer to a pc for analysis the user can manually store 99 readings or set the logger to automatically store up to 20m samples with date and time stamp at a user selected sample rate the manometer accepts interchangeable transducers with ranges of 30 150 and 300psi and it automatically senses the plug in tr