à¤Ã×èͧÇÑ´¤ÇÒÁË¹Ò Thickness Meter Ultrasonic Thickness à¤Ã×èͧÇÑ´¤ÇÒÁ˹ÒàËÅç¡ ÍÅÙÁÔà¹ÕÂÁ Êáµ¹àÅÊ ÇÑÊ´Øá¢ç§ > à¤Ã×èͧÇÑ´¤ÇÒÁ˹ÒàËÅç¡ ÇÑÊ´Øá¢ç§ Ultrasonic Thickness Gauge TM130D à¤Ã×èͧÇÑ´¤ÇÒÁË¹Ò TM130D Ultrasonic Thickness Gauge Description Ultrasonic thickness gauges use sound wave to measure wall thickness. Different types of materials have different inherent acoustic velocities. (sound travels at different speeds through different materials). The instruction book includes a table of acoustic velocities for common materials. Even if you don't know the acoustic velocity or your material, you can measure it with the sample of material of known thickness to star with. Specifications Range 1.2~220mm (Steel Accuracy ±(0.5%H+0.2)mm Resolution (<100mm) 0.1mm Sound Velocity Range Steel, Iron, Copper, PVC, Glass..... Probe Type 5MHz×1 Working Frequency 5MHz Working Temperature 0~45°C Probe Temperature 0~60°C Pipe Lower Limit Φ10mm Probe : Φ20×3mm (Steel) CAL Calibration yes Backlight Display yes Overrange Alarm yes Low Battery Indication yes Auto Power Off yes Packing Infromation Power : 3pcs 1.5V AAA alkaline batteries LCD Size : 56×42mm Product Color : Black+yellow Product Size : 135×71×35mm Product Net Weight : 210g Packing : Gift Box Thickness Meter TLEAD TM130D Ultrasonic Thickness Gauge à¤Ã×èͧÇÑ´¤ÇÒÁË¹Ò à¤Ã×èͧÇÑ´¤ÇÒÁ˹ÒàËÅç¡