Dwyer 477B-1 (0 inH2O to 20 inH2O, 0.1 %, -17.8 C, 60 C)

The 477B-1 is a series 477B handheld digital manometer. It is a versatile, hand-held, battery operated manometer. It measures either positive, negative or differential pressures with +/- 0.10% of full-scale accuracy. 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 is a hold feature; plus both visual and audible overpressure alarms. Typical applications include lab calibration of other pressure instruments and air velocity/air flow measurements in commercial buildings. Features:– Range 0 to 20.00″ water column- Precise 0.1% FS accuracy provides four times better accuracy than most standard manometer/gages- Aluminium housing protects instrument against damage- 4-digit LCD display- 9V alkaline battery included- Two barbed connections for use with 1/8 inches (3.18 mm) or 3/16 inches (4.76 mm) I.D. tubing

– Pressure Measuring Range: 0 inH2O to 20 inH2O- Accuracy: 0.1%- Operating Temperature Min: -17.8 C- Operating Temperature Max: 60 C