Model KT60 Measurement Range 0.65~400mm Material Velocity Range 509~18699m/s Measuring Accuracy ±(0.5%H+0.05)mm Display Accuracy 0.01mm/0.001inch Scanning Rate 2~20 times/sec Frequency Bandwidths 1?10MHz Measuring lower limit of pipes ?15mm×1.0mm (Probe: 5MHz, ?10mm) ?10mm×1.2mm (Probe: 7.5MHz, ?6mm) Display Mode 128×64 matrix LED Power supply 2 AA Alkaline Batteries Operating Time 280 hours typical battery life, 100 hours continuous with backlight on Operating Temperature Range -10??50?(Ambient Environment) -10??300?(High Temperature Mode) USB Gauge Size 136 mm×72 mm×20mm Weight 176g?Including Batteries?