1. Suitable for measuring the thickness of metals (such as steel, cast iron, aluminum, copper, etc.), plastics, ceramics, glass, glass fiber and any other good conductors of ultrasound.2. Can be equipped with a 5MHz frequency ultrasonic probe.3. With a 4mm thickness, the stainless steel standard sheet is used for self-calibration and can automatically correct the system error.4. The known thickness can be used to measure the sound velocity to improve the measurement accuracy.5. With a coupling status prompt function.6. With a remaining power indicator function, the remaining battery power can be displayed in real time.7. Beautiful, portable, highly reliable, suitable for harsh operating environments, resistant to vibration, impact and electromagnetic interference.Parameters:1. Display: 2.8-inch TFT color screen2. Power supply: built-in 3.7V 2000mA lithium battery3. Automatic shutdown function: If the instrument is not used within 3 minutes, it will automatically shut down4. Over-range prompt: beeps twice in single mode and continuously beeps in continuous mode5. Temperature and humidity:Operating temperature: -20 degrees Celsius to +50 degrees CelsiusStorage temperature: -30 degrees Celsius to +70 degrees CelsiusRelative humidity: less than or equal to 90%6. Environmental requirements: The surrounding environment has no strong vibration, no strong magnetic field, no corrosive media and severe dust.7. Dimensions: 178x74x40.5mm8. Weight: 265gPackage List:Host x 1Charging cable x 1Tool kit x 1Ultrasonic probe x 1English manual x 1Built-in 3.7V 2500mAh lithium battery x 1Packing box x 1Specification: Package Weight One Package Weight 0.50kgs / 1.11lb One Package Size 23.5cm * 13cm * 5.5cm / 9.25inch * 5.12inch * 2.17inch Qty per Carton 40 Carton Weight 21.00kgs / 46.30lb Carton Size 54cm * 47cm * 27cm / 21.26inch * 18.5inch * 10.63inch Loading Container 20GP: 389 cartons * 40 pcs = 15560 pcs40HQ: 903 cartons * 40 pcs = 36120 pcs