Starrett 3812 ultrasonic thickness gage measures material thickness from 0.040 to 12 inches with 0.001 inch or 0.01 mm resolution. Accuracy is ±0.5% of thickness plus 0.001 inch. Operating temperature range is 32 to 122 degrees Fahrenheit. This handheld gage is suitable for metal, plastic, and other materials.

Ultrasonic Thickness Gage is a menu driven, multifunctional tester with basic measurement capabilities. This gage is designed to measure the thickness of metallic and non-metallic materials such as aluminum, titanium, plastics, ceramics, glass and any other good ultrasonic wave conductor, as long as it has parallel top and bottom surfaces. The 3812 will accurately display readings in either inch or millimeter after a simple calibration to a known thickness or sound velocity.

Features

• These calipers feature a joint that can be quickly and firmly locked by a partial turn of the large knurled disc
• A spring washer under the disc maintains proper tension of the legs when the joint is unlocked
• These calipers are also provided with an adjusting screw to permit fine adjustments for close measurements
• After the legs have been set to approximate size and the joint locked, the final adjustment is made by a few turns of the knurled adjusting nut
• 12 in leg length