Testboy 74Layer-thickness tester, paint-coat measurement Testboy 74 Data Sheet

 

The display consists of three 
LEDs that indicate the layer 
thickness range. 
 
Red 

>400 µm  

Yellow / red 

350 - 400 µm 

Yellow  

250 - 350 µm 

Green / yellow  150 - 250 µm 
Green 

0 - 150 µm 

 
The device is pre-set to these 
ranges and does not need to 
be calibrated. 

 

 
 

 

WARNING 
Always replace the cap. The sensor tip is sensitive!