Featuress:
This Coating Thickness gauge adapts Electromagnetic Induction principle and magnetic Induced EDD current. It can measure the thickness of non-metal coatings on metal surface.
This unit is ideal for manufacturing company, metal machinery industry, chemical industry, and commodity inspection especially in automobile trading.
Auto power off mode designed to conserve battery life
Compact design and easy to carry
Zero, one-point and two-point calibrating
Digital LCD display
Comes with non-iron (aluminunm) base
Portable, user friendly and easy to carry even in pocket
Provides Single, Continuous & Difference measurement mode with metric/imperial conversion

Specifications:
Target Measure: Non-metal coating thickness on the metal surface
Measuring Range: 0~1.80mm/0~71.0 mil nonmetal coating on metal surface
Accuracy: ±0.03mm
Power Supply: 2 x 1.5V AAA battery(not include)
Minimum base diameter: 50mm
Critical base thickness: 0.5mm
Display resolution: 0.01mm/1mil
Operating Temperature:0~40°C
Operating Humidity: 10~95%RH

GM200 Calibrate Methold:
1.press Mode and ON key at same time will hear "B" show :0.00,
2.press the GM200 on the metal surface, will hear"DI DI", and the item will show 0.05
3.Sequentially displayed 6 different Standard number, and Recalibration by Standard pieces Sequentially
​4.after test Standard pieces Sequentially , the GM200 will auto turn off , so Recalibration is ok ​
5.After Recalibration OK, please check on the metal surface, will show:0.00

NOTE: The GM200 need Recalibration again when test different metal base
It can measure the thickness of non-metal coatings on metal surface.
If you test the painting on metal iron, you should reset on metal iron firstly
If you test the painting on metal aluminum, you should reset on metal aluminum firstly
The metal thickness should over 0.5mm