| Measuring method | Ultrasonic pulse reflection |
| Thickness unit of measure | Millimeters or inches |
| Frequency range |
5 MHz |
| Sampling rate | 4 times/second |
| Thickness range | AD-3253B : 0.8 mm ~ 100.0 mm (0.035 inches ~ 4 inches) AD-3253 : 2.0 mm ~ 200.0 mm (0.08 inches ~ 8 inches) |
| Accuracy | AD-3253B : ±0.1 mm ±0.5% (thickness range: > 0.8 mm < 40 mm) ±0.1 mm ±1.5% (thickness range: < 100 mm) ±0.01 inches ±0.5% (thickness range: > 0.035 inches < 1.57 inches) ±0.01 inches ±1.5% (thickness range: < 4 inches) AD-3253 : ±0.1 mm ±1.0% (thickness range: > 2 mm < 100 mm) ±0.1 mm ±1.5% (thickness range: < 200 mm) ±0.01 inches ±1.0% (thickness range: > 0.08 inches < 4 inches) ±0.01 inches ±1.5% (thickness range: < 8 inches) |
| Resolution | 0.1 mm (0.005 inches) Depending on surface condition of sample |
| Display device | Liquid Crystal Display |
| Power supply | One AA dry cell battery |
| Battery replacement | Approximately 30 hours of operation. Low battery indicator activates when replacement is required. One hour of additional operation available after initial low battery indication. |
| Operating temperature | 0°C ~ 50°C |
| Dimensions | 68 mm (W)x 120 mm (H) x 27 mm (D) |
| Weight Approximately | 180g |
