Feature
Facilitate the measurement of the inside diameter of a deeper hole
•Waterproof, oil proof, anti-electromagnetic interference, antistatic, protection Level IP67 (CEI 60529)
•Two-button design, menu prompt, simple, convenient and easy to operate
•Manual / automatic power switch ，automatic shutdown after 5 minutes without being used（Note：Some models will automatically reboot at a 16-hour shutdown when the slider is moved. ）
•Low-voltage alarm, high and low temperature, and other error alarm .
•Infinite response speed, no speed error.
•ABS / INC mode and metric / inch units conversion
•With data presetting function
•With data output
•Battery : 3V lithium battery （CR2016）
•Battery life：Approx. 2000 hours
•Packed in wooden box
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