Thickness Gauges

Our digital thickness gauges offer a range of features for advanced performance. Explore different options to suit your application needs, from simple handheld gauges to advanced models. All Olympus ultrasonic thickness gauges can measure thickness from one side of a part. An ultrasonic thickness gauge can measure most engineering materials, including plastics, metals, metal composites, rubber, and internally corroded materials. Olympus is also a leading manufacturer of Hall Effect thickness gauges, which are ideal if you’re looking to achieve fast, precise, and accurate measurements on nonferrous or thin materials, such as plastic bottles.

27MG 27MG

The 27MG basic ultrasonic thickness gauge is designed to make accurate measurements from one side on internally corroded or eroded metal pipes and parts. It is lightweight, durable, and ergonomically designed for easy, one-hand operation.

45MG 45MG

The 45MG advanced ultrasonic thickness gauge is packed with standard measurement features and software options. This unique instrument is compatible with the complete range of Olympus dual element and single element thickness gage transducers.


The versatile 38DL PLUS™ gauge can be used with dual element transducers for the measurement of corroded pipes to the very precise thickness measurements of thin or multilayer materials with a single element transducer.

Magna-Mike 8600 Magna-Mike 8600

The Magna-Mike™ Hall Effect thickness gauge uses a magnetic probe to perform accurate measurements on nonferrous and thin materials such as plastic bottles.


The 35RDC is a simple Go/No-Go ultrasonic gauge designed to detect subsurface defects caused by impact damage on aircraft composite structures.