KSJ Photoelectrical Instruments Co. Ltd. is one of leading professional manufacturers of Testing Instruments in China . 

We have accumulated more than twenty-year practical experiences in the design and manufacture of photoelectrical instruments. We have the perfect abilities in product development, innovation and reformation from research to bulk production. 
After 25 years'development, KSJ Glossmeters have been widely used all over the world in gloss measuring of paint work, decorative materials,  woodenwares,  ceramic,  printing ink, paper, as well as metal polishing and depositing.  Andbecoming the first choice for experts in the above fields. 
KSJ always adheres to its belief Perfect Anytime, Honest Anywhere. We would like to provide you with more advanced, practical and reliable instruments.