** Warranty: 1 Year ** - Super High Accuracy. - Lithium Battery. - To Measure The Length Of Root Canal. - 4' Screen Ratio. - Power: AC100-240V.S0/60H7. Advantages: - Super High Accuracy 8 Sensitivity with connect function. - Advanced multi-frequency technology, automatic calibration. - More sensitive high frequency feedback, more accurate multi-frequency detection. -Ultra-thin body,4" better screen ratio, adjustable viewing angle. **For further product information, please contact chat support**