Fowler's Mini Electronic Indicator with Bluetooth This indicator is Coolant, Water & oil resistant to IP67 specifications!Includes tough carbide contact point!Includes Bluetooth Output so you can easily send readings to a phone or tablet with Bluetooth connectivity.Specifications include... 0-.5" / 12.5mm Measuring Range 0.0005" / 0.01mm Resolution + 0.0002" / + 0.005mm Accuracy Bluetooth connectivity to your phone or tablet IP67 protected against fluid and dust Analog scale for reversal point indication 3/8" mounting diameter with 4-48 contact thread Auto power off feature Optional cable connectivity output