The AMN2 is a manometer accessory head for use with our modular multimeters (DMMs) and instruments. Measures gas pressure with a resolution for static pressure measurements. The AMN2 includes a zero adjust and the Auto Power-Off (APO) function to conserve battery life. Disable APO for data logging. The AMN2 measures pressure between -60inWC and 60inWC (inches of water column). Take static pressure measurements using the resolution mode of 0.01inWC.