plating thickness gauge CM-8825FN in built probe

Application:used for measuring thickness and corrosion of pressure vessels,chemical equipment,boilers,oil storage tanks,etc.in industries of petroleum,shipbuilding,power station,and machine manufacturing.
Model: CM8825FN
In built probe(s)
Operating principle: magnetic induction/eddy current (F/NF)
magnetic induction: to measure the thickness of nonmagnetic coating layers on magnetic substrate

eddy current:to measure the thickness of non-conductive coating layers on nonferrous substrate

Measuring range:0-1250um/0-50mil
Resolution; 0.1/1
Accuracy: ±1-3%n or ±2.5um
Min. measuring area: 6mm
Min. sample thickness: 0.3mm
Battery indicator: low battery indicator
Metric/ imperial: convertible
Power supply: 4x1.5V AAA(UM-4)battery
Auto power off
Operating conditions:0-+45℃(32℉-104℉),≤90%RH
Dimensions: 126x65x27mm
weight: 81g(not including battery)
Optional accessories: other range 0-200um to 15000um
 RS-232C cable & software:
1.USB adaptor for RS-232C
2.Bluetooth  interface