Dwyer Instruments 475-0-FM

Product Highlights

• New Low Range Option 0-1.000 in H2O
• Measures Positive, Negative and Differential Pressures
• Rugged, Extruded Aluminum Case
• Lightweight, Fast and Easy to Use
• Selectable English/Metric Units
• range 0-10.00 in H2O (2.491 kPa)
• maximum pressure 5 psig

Its simple operation and easy to read digital display make it an indispensable test instrument for the plant engineer, industrial hygienist and HVAC technician. When used with a Dwyer Pitot tube, the Series 475 Mark III can also be used as an air velocity gage. See the complete 475-1-AV kit. The Series 475 Mark III is housed in a durable extruded aluminum case with its solid state circuitry mounted on a tough fiberglass epoxy circuit board. To meet the most demanding applications and to provide stability of instrument reading, the 1 in w.c. range is compensated for position sensitivity through the use of a unique patented dual sensor system. A standard 9 V battery provides up to 100 hours of operation. Dual push pads on the front panel control on-off, auto zero, and pressure unit selection. No set-up or leveling. The large 0.42" LCD display is easy to read, minimizing data collection errors. Units include a "low battery" indicator. The pressure sensor used is a highly stable silicon piezoresistive device. Standard connections are dual sized for 1/8" or 3/16" ID vinyl or rubber tubing. Complete instructions are conveniently printed on rear of housing.