| Mark | Item | Date of Registration | View Patent |
| China Compulsory Certificate | 2007.07.10 |  |
| CE | Certification of Europe (LED Sign tower STS series) | | |
| CE | Certification of Europe (STL025 / STL series) | | |
| Certification of Europe (NX1) | | |
| Certification of Europe (Analog timer_LVD) | | |
| Certification of Europe (Analog timer_EMC) | | |
| China Compulsory Certificate | 2007.07.10 | |
| Certificate parts and materials reliabilit (3 Terminal Inductive Proximity Sensor Module) | | |
| Certificate parts and materials reliabilit (3 선식 고주파발진형 근접센서모듈) | 2007.10.18 | |
| Certificate of Europe (Photo Electric Sensor (PE)) | 1998.01.31 | |
| CE | Certificate of Europe (Digital Temperature Controller (NX Series, PX Series)) | 2000.03.28 | |
| Certificate of Europe (Digital Temperature Controller (MX9)) | 1996.05.01 | |
| Certificate of Europe (Digital Temperature Controller (MX4)) | 1996.05.01 | |
| Certificate of Europe (Digital Temperature Controller (MX2)) | 1996.05.01 | |
| CE KXN series lvd DR50120810W | | |
