Can measure narrow grooves in a hole.
Special order requires the following data:
1.The diameter of the hole
2.The distance from the groove to the orifice
3.The width of the groove
4.The depth of each groove
5.The shape of the groove bottom

·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 (CR2032)

·Battery life: Approx. 2000 hours