TT220，SDH22-1 type,Coating thickness gaugeThe magnetic thickness measurement method is adopted, which is an ultra small measuring instrument that can quickly, non destructively, and accurately measure the thickness of the coating on the ferromagnetic metal substrate. It can be widely used in manufacturing, metal processing industry, chemical industry, commercial inspection and other testing fields. Due to its small size and integrated probe, this instrument is particularly suitable for on-site engineering measurements.

Main functions
Zero point calibration and two-point calibration can be performed.
Basic calibration can be performed on the measuring head.
There are five statistical measures: mean（MEAN）, maximum value（MAX）Minimum value（MIN）Test frequency（NO）Standard deviation（S.DEV）.
Can store and perform statistical calculations15A measurement value.
There are two measurement methods: continuous measurement method（CONTINUE）And single measurement method（SINGLE）.
It has an automatic shutdown function.
Delete function: Delete single suspicious data that appears during measurement, or delete all data in the storage area for new measurement.
There is a buzzing sound during the operation process.
There is an undervoltage indication function.
There is an error prompt function.

Main technical indicators
Measurement principle: magnetic method
measurement range:1～1250μm
Measurement accuracy:±（3%H+1）μm(Zero point calibration)
　　　　　　　±[(1～3)%H+1] μm(Two point calibration)