The LS212 is a handheld ultrasonic thickness gauge that uses ultrasonic pulse-echo technology to measure the thickness of materials where only one surface is accessible. Itβs non-destructive, compact, easy to use, and ideal for industrial inspection, quality control, and corrosion monitoring.
π Key Technical Specifications
Measurement Performance
Thickness range (standard probe): ~0.8 mm β 350 mm (on steel).
Resolution:
0.8β10 mm: 0.001 mm
10β100 mm: 0.01 mm
100β350 mm: 0.1 mm
Sound velocity range: 1000β9999 m/s (customizable).
Display: 240 Γ 160 dot-matrix LCD, mm/inch selectable.
Accuracy
For thin materials (< 10 mm): approx Β±0.05 mm.
For thicker materials (β₯ 10 mm): approx Β±0.5 % of reading.
Probes Supported
The LS212 works with four types of probes (auto-detects the connected probe):
Probe Type Typical Use Thickness Range Min. Measuring Spot
Standard Probe (5 MHz Ο10) General use 0.8β350 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 / coarse materials 3β200 mm Ο12 mm
High Temp Probe (5 MHz GT-12) Higher temperature workpieces 3β200 mm Ο12 mm
Physical & Power
Power: 2 Γ AA alkaline batteries.
Size & Weight: About 142 Γ 72 Γ 28 mm, ~230 g.
Operating Temperature: β10 Β°C to 60 Β°C.
π οΈ Features & Functions
β Two Measurement Modes
QC Mode: Define upper/lower limits with PASS/FAIL feedback.
Statistics Mode: Auto-calculates max/min/average values of recent readings.
β Automatic Gain Switching
Automatically adapts ultrasonic signal gain for clear echo detection across material types and thicknesses.
β Penetration Coating Mode
Measures true substrate thickness through paint/coating without removal (using standard probe).
β Bluetooth & Software Support
Bluetooth connectivity to mobile app for data logging and sharing.
PC software for data export and analysis.
β Large On-board Memory
Stores up to 999 measurement records.
β Custom Material Sound Velocities
You can save custom sound speed values for up to 18 materials for repeated use.
π Typical Applications
The LS212 is suitable for non-destructive thickness measurement of:
Pipes and tubing
Pressure vessels
Structural steel
Metal/plastic/ceramic parts
Glass and composites
β¦and in industries like petrochemical, shipbuilding, aerospace, metallurgy, and manufacturing quality control.
π§ Quick Comparison (Vs. Other Linshang Models)
VS LS211: LS211 covers a broader range up to ~600 mm; LS212 up to ~350 mm.
VS LS213: Similar range to LS212 but with lower resolution (LS213: ~0.01 mm).