Measures positive, negative, or differential pressure of gases and liquids; Imperial and metric ranges: 0-2” w.c. and 0-50 mm w.c.; Accuracy: ±0.06 Pa.  

Accuracy up to ±0.00025” water column, battery-powered, comes with a full set. Fast, precise pressure measurement at a reasonable cost. Combines modern solid-state integrated circuits with a time-tested analog pressure gauge. When measuring positive, negative, or differential pressure in the 0 to 2” water column range, repeatable accuracy reaches ±0.00025” water column. Metric M-1430 model reads 0-50 mm water column. Used to calibrate other instruments. Provides high-accuracy testing for manufacturing lab experiments. Applicable for fans, HVAC, heating units, gas or fluid control in industrial settings. Used in laboratories at research institutes, universities, consulting firms—anywhere precise measurement is needed. When used with a Pitot tube (sold separately), it can accurately measure low wind speeds. Measures positive, negative, or differential pressure up to 2.0” water column. Easy to maintain and clean, with simple battery replacement. The gauge can be cleaned conveniently with just neutral soap and water. The indicator fluid includes distilled water and a small amount of Deweil A-126 concentrated fluorescein. Maximum pressure 100 Psig (6.89 Bar).

Pressure Gauge* — Durablock integrated structure, precision-machined acrylic, mounted on a heavy-duty 1/2" thick steel base plate. During the installation of the three reference points, two adjustable leveling screws are included, and a leveling reference tube is provided for quick setup. Pointer Meter — Uses a sensitive 0-50 microamp DC meter for detection. Powered by a 1-1/2 volt pen-type battery (included). No external power needed. Electronic Circuit — Solid-state integrated circuit electronic components mounted on a glass-epoxy board, sealed and protected in an AB plastic injection-molded casing. Micrometer — Accurate calibration points meet Federal Specification GGG-C-105C, NIST-approved. Pressure Gauge Indicating Fluid — 3/4 oz of non-toxic concentrated green fluorescein, to be used with distilled water. Accessories — Two 3-meter long polyethylene tubes, two 1/8" tube connectors, micrometer, and cleaning cloth for cleaning. Carrying Case — Sturdy tin case with gray surface, handle, and latch. Comes with detailed instructions.