The Dwyer HM3531GML310 Handheld Digital Gauge Pressure Manometer, Range 0-145 psi, 0.2% Accuracy is designed to reliably measure and log pressure measurements for critical applications. This manometer can measure gauge pressure with 0.2% accuracy. The data logging function can store up to 10,742 readings and transmit the readings to a PC through an IR serial port. The large display can graphically display trends in the data as well as peaks and valleys. The HM3531GML310 is ideal for laboratories, calibration facilities, and other critical pressure applications.