BSIDE T7 2.8 inch TFT Color Screen Ultrasonic Thickness Gauge 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 screen 2. Power supply: built-in 3.7V 2000mA lithium battery 3. Automatic shutdown function: If the instrument is not used within 3 minutes, it will automatically shut down 4. Over-range prompt: beeps twice in single mode and continuously beeps in continuous mode 5. Temperature and humidity: Operating temperature: -20 degrees Celsius to +50 degrees Celsius Storage temperature: -30 degrees Celsius to +70 degrees Celsius Relative 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: 178x74x40.5mm 8. Weight: 265g Package List: Host x 1 Charging cable x 1 Tool kit x 1 Ultrasonic probe x 1 English manual x 1 Built-in 3.7V 2500mAh lithium battery x 1 Packing box x 1