ring range (metric/imperial):
1.0-280mm,0.05-11.0inch (in Steel).
4)Sound Velocity Range:
(500~9000) m/s.
5)Resolution： 0.01mm;
6)Accuracy：
（0.05%H+0.1）mm, depends on materials and conditions
7)Units: Metric/Imperial unit selectable.
8)Power supply:
4x1.5 AAA size (UM-4) battery 1
9)Battery indicator: low battery indicator
10)Operating conditions:
0-+45℃(32℉-104℉),90%RH
11)Dimensions:
Main Unit 140mm60mm22mm
12)Gloss Weight :1KG
13)Standard Delivery: Main Unit,8mm Probe, Coupling O