The AMN2 manometer fromFieldpiece Instruments, Inc. (Fullerton, CA) measures gas and static pressure. When used with the company's digital multimeter, measurement of gas pressures up to 20 in. wc with a resolution to 0.1 in. wc are possible. In static pressure mode, the unit is designed to measure up to 2 in. wc with resolution to 0.010 in. wc.