Checkline TI-45NA [TI-45NA] Ultrasonic Wall Thickness Gauge Kit

Measuring Range in Steel: 0.040 - 8.00 inches (1.00 - 200.0 mm)
The CHECK-LINE TI-45NA Ultrasonic Wall Thickness Gauge accurately measures wall thickness and the extent of corrosion of all metals, ceramics, glass and most rigid plastics - from only one side!
The attractive, ergonomic housing design is extremely compact, lightweight and rugged. It fits comfortably in the palm of your hand and incorporates a back light that illuminates the LCD in poorly lit areas.