A manometer is a device used to measure pressure. There are a variety of manometer brands. The top brands are Amprobe, Bacharach, Extech, General Tools, Testo, TIF Instrument, TPI, TSI Alnor, UEi, Wohler, and Yellow Jacket.
Alnor AXD610 Micromanometer measures differential and static pressure. This micromanometer calculates velocity when used with a pitot tube.
Product made in USA and comes with NIST Certificate of Calibration.
Alnor AXD620 Micromanometer measures differential and static pressure from -15 to +15 in. H2O (-3735 to +3735 Pa). This micromanometer calculates and displays velocity when using a Pitot tube.
Product made in USA and comes with NIST Certificate of Calibration.
Alnor HM670 Hydronic Manometer can measure and display differential, high side, and low side pressures simultaneously without the need to change hose connections or instrument valve settings. This hydronic manometer reads in. H2O, ft. H2O, psi, in. Hg, mm H2O, kPa, mm Hg, or bar.
Product made in USA and comes with NIST Certificate of Calibration.
Alnor HM680 Hydronic Manometer can measure and display differential, high side, and low side pressures simultaneously without the need to change hose connections or instrument valve settings. This hydronic manometer calculates brake power, heat flow, Cv (Kv) factors, and impeller sizing.
Product made in USA and comes with NIST Certificate of Calibration.
Amprobe MAN02-A Manometer for Differential Pressure with USB is a portable, battery operated pressure measuring device, that is the right tool for HVAC/R technicians measuring pressure level, or anyone working with valves, control sensors in a pneumatic control environment.
Amprobe MAN15 Differential Pressure Manometer features an internal time clock to capture events. This differential pressure manometer features maximum and minimum value recordings with time stamp help adjust and trouble shoot the pressure systems.
Amprobe MAN30 Differential Pressure Manometer features an internal time clock to capture events. This differential pressure manometer features maximum and minimum value recordings with time stamp help adjust and trouble shoot the pressure systems.
Testers and Tools 
