1. Use one 9V battery 2. Measuring range: 0-500 3. Resolution: 1.0mm 4. Measuring accuracy: ±0.2mm 5. Wide adaptability 6. Low consumption, durable 7. Accurate measurement, clear reading 8. Fast detection speed, high sensitivity 9. Adapt to water quality in various environments and regions 10. Scope of application: tunnel lining, bridge, slope, dock, gate, continuous wall 11. The use of anti-gradation excitation circuit and corrosion-resistant electrode can effectively prevent electrode oxidation and rust, and maintain long-term use sensitivity unchanged
