UT Thickness Gauges

27 MG

Price on request

27 MG

Price on request


The Olympus 27MG is an affordable ultrasonic thickness gauge designed to make accurate measurements from one side on internally corroded or eroded metal pipes, tanks, and other equipment. Despite its compact size, the 27MG has many innovative measurement features utilizing the same technologies that are available on our more advanced thickness gages.

The 27MG is designed for inspectors and maintenance engineers that need to monitor the wall thickness in metal pipes, tanks, beams, and structural supports that are susceptible to corrosion on the inside surface. An ultrasonic thickness gauge provides a quick, cost-effective solution by transmitting sound into the material from the outside, making it unnecessary to damage the part.



Transducer type

Thickness range

Resolution (selectable)

Operating temperature range



Dimensions (W x H x D)


Power Supply

Battery life operating time

Explosive Atmosphere


Alarm mode


Dual Element Transducer

0.50 mm to 635 mm (0.020 in. to 25.0 in.) depending on material, transducer, surface conditions, temperature

Low: 0.1 mm (0.01 in.) Standard: 0.01 mm (0.001 in.)

-10 °C to 50 °C

Sealed, colour-coded keypad with tactile and audible feedback

Impact-resistant and water-resistant, gasketed case with sealed connectors. Designed for IP65.

84.0 mm x 152.4 mm x 39.6 mm

340 g

3 AA alkaline batteries

150 h of typical battery life, 30 h continuous use with backlight

Safe operation as defined by Class I, Division 2, Group D, as found in the National Fire Protection Association Code (NFPA 70), Article 500, and tested using MIL-STD-810F 511.4 Procedure I

Designed for EN15317

Programmable Hi/Low set points with audible and visual indicators

Dual element corrosion gaging

Large backlit LCD display

Rugged handheld design

Ergonomically designed for easy, one-hand operation