| Type | Digital pressure gauge |
| Model | Series 477AV |
| Display | Large with backlight |
| Service | Air and compatible gases |
| Accuracy | ±0.5% FS at 60-78°F |
| Flow Units | cfm, m3/h, m3/s |
| Data Storage | Up to 40 readings with statistics |
| Pressure Units | in w.c., ft w.c., in Hg, psi, oz/in2, mm w.c., cm w.c., mm Hg, mbar, Pa, kPa, hPa |
| Velocity Units | fpm, fps, mph, m/h, m/s, k/h, knot |
| Measurement Range | 0-100 mbar |
| Temperature Range | 0 to 140°F (-17.8 to 60°C) |
| Tubing Connection | 1/8˝ or 3/16˝ ID |
| Storage Temperature | -4 to 176°F (-20 to 80°C) |
| Compensated Temperature | 32 to 104°F (0 to 40°C) |
