Feature: measure the working length of the tooth by DC resistance, accurate measure even in dry or wet cabinet.
Apply to: measure the length of all kinds of pulpitis, pulp necrosis, priapical priodonpitis, measure the length of transplanting or replanting tooth.
Technical parameter:
1. Detect range: 0, 0.5, 1.25, and 2.0.
2. Detective precision: the tolerance of corresponding DC resistance will not more than ±10% when display the above value.
3. Sonar alert: when the value is ≤0.5, there will be sonar alert.
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