measuring method : ultrasonic pulse reflection
thickness unit of : measure millimeters or inches
frequency range : 5mhz
thickness range : ad-3253b: 0.8 mm - 100.0 mm (0.035 inches - 4 inches)
thickness range : ad-3253: 20. 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 rang : > 0.035 inches < 1.57 inches)
+0.01 inches + 1.5% (thickness rang : < 4 inches)
accuracy : ad-3253 : +0.1 mm + 0.1% (thickness range : > 2 mm < 100 mm)
+0.1 mm + 1.5% (thickness range < 200 mm)
+0.01 inches + 1.0% (thickness rang : > 0.08 inches < 4 inches)
+0.01 inches + 1.5% (thickness rang : < 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. on hour of additionnal
operating temperature : 0-50 c
dimensions : 68 mm (w) x 120 mm (h) x 27 mm (d)
weight approximately : 180g