LS211 Ultrasonic Thickness Gauge - Non-Destructive Testing for Metal, Glass, Ceramics, Plastics

Model :


LS211 ultrasonic thickness gauge uses the ultrasonic pulse reflection principle for thickness measurement. The instrument can be equipped with four types of probes: standard probe, micro-diameter probe, coarse crystal probe and high temperature probe, and is professionally used for thickness measurement of metals (such as steel, aluminum, copper, etc.), plastics, ceramics, glass and other materials that can transmit ultrasonic waves. The instrument adopts professional timing chip design, the resolution is up to 0.001mm.

Non-destructive for metal, glass, ceramics and plastics
With four kinds of probes, measuring a wide range of materials
Two measurement modes: QC Mode/Statistics Mode
Large measuring range: 0.8mm-600mm and high-sensitive dual-crystal probe
Automatic Gain switchable


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

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

The instrument can be matched with four types of probes: standard probe, micro-diameter probe, coarse crystal probe and high-temperature probe, with intelligent identification of the probe model, and the instrument adapts to the display interface according to the probe type.(The default is to have a standard probe. If you need other probe models, you can purchase them separately.)

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

With E-E measurement mode
When there is a coating or paint layer on the surface of the workpiece, it will make the measurement results inaccurate. The standard probe with penetration coating measurement mode can accurately measure the actual thickness of the substrate under the workpiece coating without removing the coating from the workpiece surface.

Bluetooth APP function
The instrument has built-in Bluetooth communication module, which can be connected to cell phone APP to achieve multiple data storage and measurement data sharing.

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

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

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
The instrument with standard probe can measure 0.8mm-600mm thickness of the material, to meet the measurement needs of most users.

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.For surface measurement, the split surface of the probe should be measured perpendicular to the axis of the surface.

Probe specifications and parameters

Probe Standard Probe Micro-diameter Probe Coarse Crystal Probe High Temperature Probe
Probe Model 5MHZφ10 7MHZ PT-06 2MHZ ZT-12 5MHZ GT-12
Minimum measuring area φ10mm φ6mm  φ12mm φ12mm
Probe size φ18*26mm φ15*25mm φ18*28mm φ43*48mm
Measuring Range
0.8-600mm 0.75-80mm 3-200mm 3-200mm
(H is the standard value)
Pipe measurement lower limit
(45# steel)
φ20*3mm φ20*2mm φ30*4mm φ30*4mm
Exposure temperature -10~60℃ -10~60℃ -10~60℃ -10~500℃
Application Measure conventional workpieces Measure surfaces and small workpieces Cast iron and some materials with   large crystal particles Measure high temperature workpieces


Host parameters

Parameter Value
Resolution 0.8-10mm:0.001mm
Sound   Velocity Range 1000~9999m/s
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)



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.

Free Shipping

Under normal circumstances we offer free shipping on all orders, you will see the free shipping option in your cart at checkout. There is no choice of carrier for free shipping, but typically we will ship your order will likely ship using either USPS or FedEx. Full Shipping Policy

Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.). Full Returns Policy

When Will My Order Ship?

For Standard Shipping, we aim to pack and ship out your order within 3 business days. During special periods, such as heavy order processing or local inventory shortages that require deployment, please expect it to take an additional day or two for processing.
We ship five days a week, Monday through Friday. Sometimes our mail pickup comes in early afternoon, so tracking for orders shipped later that day may not update until the following business day.
You will receive a shipment confirmation with tracking information via email when your order has shipped. Once you receive this email, we cannot change or cancel your order.

Can I Change The Shipping Address On My Order?

Please contact us immediately via email if you realize that you gave us the wrong shipping address — if it hasn't shipped yet, we might be able to correct it before it goes out the door.
If your order ships to the address provided and is returned to us as undeliverable, then you are responsible for paying the cost of shipping again to resend it to you. If you decide you do not want your order reshipped, we'll refund you for the products less the original shipping charges, once your order returns to our warehouse. We'll reach out to you to coordinate your options before re-shipping.
If your order ships to an incorrect address provided at the time the order is placed and is not retrievable, we are not responsible and cannot offer reimbursement.

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