1. Measuring range: 1.00～225.0mm

2. Data storage: 500

3. Operation frequency: 5MHz

4. Measurement error: ±0.5%

5. Resolution: 0.01mm (1.00 to 99.99mm); 0.1mm (100 to 225mm)

6. Lower limit of pipe measurement: Φ20x3mm (steel)

7. Adjustment range of sound speed: 1000～9999m/s

8. Temperature range of operation: 0～40℃

9. Battery: 3 Ni-MH rechargeable batteries of 1.2V

10. USB charging: 5V 1A