What the LS213 Ultrasonic Thickness Gauge Is
The LS213 is a hand-held ultrasonic thickness gauge that non-destructively measures material thickness using the ultrasonic pulse-echo principle. It’s designed for materials that transmit ultrasonic waves, such as metals (steel, aluminum, copper), plastics, ceramics, and glass.
📊 Key Specifications
📐 Measurement Performance
Thickness Range: ~0.8 mm to 350 mm on steel (45# steel).
Resolution:
0.8 – 100 mm: 0.01 mm
100 – 350 mm: 0.1 mm
Measurement Accuracy:
< 10 mm: ±0.05 mm such accuracy at low thicknesses.
≥ 10 mm: ±0.5 % of reading (H is the standard thickness).
Sound Velocity Range: 1000 – 9999 m/s (adjustable for different materials).
Display: 240 × 160 dot-matrix LCD; mm/inch units.
Power: 2 × AA alkaline batteries.
🛠️ Probes & Materials
The LS213 works with four types of probes (automatically recognized by the gauge) so it can be adapted to different surfaces and materials:
Probe Type Use Case Range on 45# Steel Min Measuring Area
Standard Probe (5 MHz φ10) General materials 0.8 – 350 mm φ10 mm
Micro-diameter Probe (7 MHz PT-06) Small/curved surfaces 0.75 – 80 mm φ6 mm
Coarse Crystal Probe (2 MHz ZT-12) Cast iron / coarse grain 3 – 200 mm φ12 mm
High Temperature Probe (5 MHz GT-12) High-temp components 3 – 200 mm φ12 mm
The gauge automatically identifies the connected probe and adjusts the measurement interface accordingly.
🔍 Features & Functions
✔ Dual-Crystal Probe Technology
Uses a dedicated transmitting and receiving crystal for clearer echoes and reduced noise.
✔ Automatic Gain Switching
Automatically adjusts the signal gain based on material and thickness for reliable echo detection.
✔ QC & Statistics Modes
QC Mode: Set upper/lower limits for quick go/no-go checks.
Statistics Mode: Shows max, min, and average of recent readings.
✔ Coating Penetration Mode
Can measure substrate thickness through paint/coating without needing to strip the coating.
✔ Data Storage & Connectivity
Stores up to 999 measurement records and supports Bluetooth with a mobile app and PC software for data export.
✔ Custom Material Sound Speed
You can save and use sound velocity values for up to 18 materials for repeat testing.
📌 Typical Applications
LS213 is ideal for non-destructive thickness checks in industries like:
Shipbuilding & offshore
Pipelines & pressure vessels
Automotive components
Metal fabrication & corrosion monitoring
Manufacturing quality control
📦 Physical & Environmental Details
Dimensions: ~142 × 72 × 28 mm
Weight: ~230 g
Operating Temp: –10 °C to 50 °C
Storage Temp: –10 °C to 60 °C
