The LS211 Ultrasonic Thickness Gauge is a handheld non-destructive measurement instrument that uses the ultrasonic pulse-echo principle to measure the wall thickness of materials that transmit ultrasonic waves β such as metals, plastics, glass, and ceramics. Itβs widely used in industrial inspection where you can access only one surface of the object (e.g., pipes, tanks, sheets).
π Key Specifications
β¨ Measurement Performance
Thickness range: 0.8 mm to 600 mm on steel (varies with probe).
Resolution:
0.8β10 mm: 0.001 mm
10β100 mm: 0.01 mm
100β600 mm: 0.1 mm
Accuracy:
Β±0.05 mm (0.8β10 mm)
Β±0.5 % of reading (10β600 mm)
Sound velocity range: 1000β19999 m/s
Display: 240 Γ 160 dot matrix LCD (mm/inch selectable).
π Probe Options
The LS211 can work with four types of probes depending on the application:
Probe Type Typical Use Thickness Range (Steel) Min. Measuring Area
Standard probe (5 MHz Ο10) General use 0.8β600 mm Ο10 mm
Micro-diameter probe (7 MHz PT-06) Small or curved surfaces 0.75β80 mm Ο6 mm
Coarse crystal probe (2 MHz ZT-12) Cast iron / high grain materials 3β200 mm Ο12 mm
High-temperature probe (5 MHz GT-12) Higher temp workpieces 3β200 mm Ο12 mm
Each probe is identified automatically when connected.
π οΈ Features & Modes
β Two Measurement Modes
QC Mode: Set upper/lower thickness limits and get a pass/fail indication.
Statistics Mode: Automatically calculates max, min, and average from recent measurements.
β Automatic Gain Adjustment
Gain adjusts automatically based on material and thickness for clear echo detection.
β E-E (coating penetration) Mode
Allows measuring substrate thickness through paint/coating without removing it.
β Bluetooth & Software Support
Built-in Bluetooth for connecting to a phone app for data storage/sharing.
PC software available for Excel export and review.
β Large On-board Memory
Stores up to 999 measurements, with customizable sound velocity for up to 18 materials.
π Typical Applications
The LS211 is useful for monitoring the remaining wall thickness of structures to assess corrosion or wear, including:
Pipes and tubes
Pressure vessels
Structural steel
Ship hulls
Storage tanks
Aerospace parts
Automotive components
π¦ Physical & Power Details
Power: 2 Γ AA batteries.
Size: ~142 Γ 72 Γ 28 mm.
Weight: ~230 g.
Operating Temp: β10 Β°C to 50 Β°C (non-condensing).