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Optical keystone correction: 4-point automatic trapezoidal correction
the status is clear at a glance
deeper detection depth
Product size: 46
Simulation of natural wind comfort
50 Meters Steel Ruler Water Level Measuring Instrument GAMWING Optical keystone correction: 4-point automatic1. Use a 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 and clear reading 8. Fast detection speed and high sensitivity 9. Adapt to the water quality of various environments and regions 10. Scope of use: tunnel lining, bridges, slopes, docks, gates, continuous walls 11. The use of anti grading excitation circuit and corrosion resistant
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