LS211 Ultrasonic Thickness Gauge

Non-destructive for metal, glass, ceramics and plastics

Precision ultrasonic thickness gauge provide fast, accurate readings
Two measurement modes: QC Mode/Statistics Mode
Large measuring range: 0.8mm-600mm and high-sensitive dual-crystal probe
Automatic Gain switchable

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LS211 Ultrasonic thickness tester measures the wall thickness of metallic (cast iron, steel and aluminum) and non-metallic (ceramics, plastics and glass) substrates and any other ultrasonic wave-conductor using ultrasonic technology. The measuring range of the thickness of LS211 is 0.8mm-600mm and ideal for measuring the effects of corrosion or erosion on tanks, pipes, or any structure where access is limited to one side.

Characteristics and Operation of LS211 Ultrasonic Thickness Gauge


In many industries, It is essential to mesure the wall thickness to confirm the condition of the material for the normal running of the items or structure safety. LS211 ultrasonic thickness meter can be widely used in testing the thickness of various accessories or metallic structure to check them whether to be repaired or changed such as ships, tanks, pipes or steel structure. The gauge is applicable for petroleum, chemical, metallurgical, shipbuilding, aviation and aerospace various fields.


Parameter Value
Measuring   Range 0.8-600mm(45#steel)
Resolution 0.8-10mm:0.001mm
Accuracy 0.8-10mm:±0.05mm
10-600mm:±0.5%H, H is the standard value
Sound   Velocity Range 1000~9999m/s
Probe 5MHz φ10 double-crystal probe
Display 240 * 160 dot matrix LCD
Unit mm/inch
Power   Supply 2pcs of 1.5V AAA alkaline battery
Host   Size 142 * 72 * 28 mm
Weight About 230g
Operation Temperature Range -10~50℃,0~85%RH(No condensation)
Storage   Temperature Range -10~60℃,0~85%RH(No condensation)


Excellent Timer chips provide fast, accurate readings

LS211 ultrasonic thickness gauge calculates the material thickness by sound velocity and the time taken between the emitted pulse and the detected echo, a precision timing chip can bring the user the accurate time to get the accurate data

Ultrasonic double crystal probe

The gauge probe employs a double crystal transducer consisted of two independent crystals separated by an acoustic barrier. One crystal sends ultrasonic pulses, and another is responsible for receiving them. The probe is highly sensitive and can effectively reduce clutter, and the probe housing is made of stainless steel, which is hard and durable

Automatic Gain switchable

Some materials are good conductors of sound and some are not. For the latter, the meter can switch the Gain freely which is to amplify the ultrasonic signal so that the emitted pulse is accurately captured by the transducer as it propagates, and obtains accurate data

High precision ensures LS211 can pass Chinese authoritative metrology institute

The accuracy of LS211 ultrasonic precision thickness tester can reach ± 0.05mm when testing materials 0.8-10mm thick, and the accuracy is ± 0.5% reading during 10-600mm thickness range. The gauge can pass the inspection of Chinese national authoritative metrology institute

Two measurement modes: QC Mode/Statistics Mode

LS211 ultrasonic thickness tester features two measurement mode: QC mode and statistics mode
Allowing to set upper and lower limits to check the problem areas by prompting NG under the QC mode. It will count maximum, minimum and average values of data in Statistics mode

Statistics mode

Statistics mode

QC mode

QC mode

Built-in sound velocity of multiple materials

LS211 already contains the velocities of several common metallic (such as iron, copper, aluminum) and non-metallic materials (plastics, ceramics, plexiglass) as well as other objects and the user are not required to find them separately

Sound velocity can be measured according to thickness

The tester can reverse the sound velocity of the material based on the known thickness and measurement results. And the instrument can test irregular materials of the same components as the materail whose thickness can be measured

Large measuring range of thickness

With a wide mesuring range of material, the LS211 can detect materials from as thin as 0.8 mm to 600 mm. Its resolution can reach to 0.001mm when measuring the objects 0.8mm-10mm

Various materials can be measured accurately

As a non-destructive testing tool, LS211 ultrasonic thickness gauge uses dual-crystal transducer and a little amount of ultrasonic couplant to assist in detecting the thickness of substrates, able to measure the thickness of most materials, such as steel, plastics, glass, ceramics and so on

Comfortable grip with non-slip silicone keys

LS211 ultrasonic thickness gauge housed in ABS plastic shell with non-slip silicone keys, has a comfortable grip and easy to operate

LCD Screen offers users relaxing reading experience even in the backlit environmet

Evident keypad, Simple using methods for quick menu navigation

Inch/mm switchable

Selectable display languages

Qualifications and Standards

LS211 conforms to the following standards: 

JJF 1126-2044 Calibration Specification for Ultrasonic Thickness Instruments

The qualification and certificate of LS211
The qualification and certificate of LS211



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