The working principle: uses the pulse-echo method of double crystal probe
Measurement error: ±0.1 mm (less than 10 mm)  (±1% H+0.1) (more than 10 mm) Note: H is the thickness of the object to be measured.
V path correction: v sound path correction to compensate nonlinearity of bimorph probe
Minimum scanning: drag the probe along the surface of the object to be measured, and the instrument can automatically find a place to measure the thinnest thickness.
Application software: UmView software is used to transmit, store, analyze and edit documents of measurement data (optional)
Has the function of penetrating the coating
Measuring range: 0.8-300 mm( Depending   on the probe, the standard measurement range:1-100mm)
Penetration mode: NO 3-18 mm
Working principle: Pulse echo method
Pulse echo method, Echo echo method: Probe compensation line
A probe compensation line is built in: 7 kinds of   probe compensation wires are built in and matched with 7 kinds of probes.
Resolution: 0.1mm or 0.001in
Display: 128× 64 Dot Matrix LCD Display (EL Backlight)
Repeatability: 0.1 ㎜
Unit: millimeter or inch
Calibration mode: zero calibration, two-point calibration
The measurement update rate: 4Hz
The sound speed range of the material: 1000～9999m/s or 0.0394～0.3937in/us
The storage function: divided into 5 arrays, which can store 500 thickness values.
Alarm function: set the thickness limit and give an alarm to the measured value outside the limit.
Sound speed storage: store the sound speed of 5 different materials.
Communication interface: USB interface or RS232 serial port (optional)
Power supply: two 1.5V AA batteries. When the power is insufficient, there will be a low voltage prompt.
Operating time: alkaline battery can be used for 200 hours (no backlight)
Automatically shut down: after 5 minutes without operation
Working Temperature: -10℃ ~+50℃, with special requirements up to -20℃
Size: 149*73*32mm

Ltekonline are the manufacturers of Digital Ultrasonic Thickness Gauge Meter used to demonstrate engineering principles in Engineering Colleges, Engineering Schools and Ultrasonic Thickness Gauge for Engineering Teaching Lab in Universities