Dwyer - Model 477B - Handheld Digital Manometer - User Manual

Series 477A Digital Manometers are versatile, hand-held, battery operated manometers available in several basic ranges from 0- 20 in. w.c. up to 100 psi. All models measure either positive, negative or differential pressures with ±0.10% of full scale accuracy. You can select from up to seven common English and metric pressure units so conversions are not necessary. A memory function allows storage of up to 40 readings for later recall and a backlight provides auxiliary lighting for hard-to-see locations. Also standard are a hold feature plus both visual and audible overpressure alarms.