Can measure narrow grooves in a hole.

Features

·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

·Battery    3V lithium battery (CR1632)

·Battery life  Approx. 2000 hours

·Packed in plastic box