Extech Instruments’ versatile TKG Series of ultrasonic thickness gauges are now available. The series – consisting of the TKG250, TKG150 and TKG100 models – uses ultrasonic technology to capture non-destructive thickness measurements on various engineered materials, typically to measure wall thicknesses in steel structures where only one side is accessible to take inspection measurements. The most common applications are to detect thinning areas and corrosion build up in steam lines, boiler tubes, storage tanks, and pressure vessels. TKG gauges are also used to measure thicknesses on metal components found on heavy equipment. Quality control applications beyond metals include castings, plastics, composites, fibre glass, ceramics, and glass.

Some of the key advantages of the TKG Series include its compact design, one-handed controls, intuitive interface, easy-to-read LCD display, and versatile alarm settings. The user-friendly design makes it easier for users to master any of the TKG model’s more-advanced features, such as the user-configurable Fast Minimum/Maximum threshold settings, which, combined with vibration feedback and visual flashing alarms, are designed to reduce the likelihood of missing critical thickness parameters.

The TKG100 is the basic model that does not display thickness measurements as waveforms; the TKG150 is the mid-range model that has waveform display, Echo-to-Echo feature to ignore paint and coatings, and vibration alarm; and the TKG250 incorporates full-colour waveforms, non-encoded B-Scans with color-coded alerts, as well as automatic data logging.