| Mark | Item | Date of Registration | View Patent |
| EM | Quality Certification for EM (Multi Input PID Auto Tuning Temperature Controller) | 2002.02.02 |  |
| EM | Quality Certification for EM (Digital Programmable Temperature controller (NP200)) | 2005.07.15 | |
| EM | Quality Certification for EM (Digital Programmable Temperature controller (NP200)) | 2007.05.15 | |
| EM | Quality Certification for E M_ENG | 2005.07.15 | |
| EM | Quality Certification for E M_KOR | 2005.07.15 | |
| KATS | New Technology Certification_eng | 2000.04.10 | |
| KAST | New Technology Certification_korean | 2000.04.10 | |
| KS | Korean Standard Association (Resistive indicate temperature controller (HY - 4500, 5000) Thermoelectric indicate temperature controller (HY - 4500, 5000)) | 1998.09.14 | |
| KS | Korean Standard Association (Thermoelectric digital temperature controller (DX series)) | 1998.09.14 | |
| KS | Korean Standard Association (Resistive digital temperature controller (DX series)) | 1998.09.14 | |
| KS | Korean Industrial Standard Certificate (KS C 1608) | 2004.01.28 | |
| KS | Korean Industrial Standard Certificate (KS C 1604) | 2004.01.28 | |
| KS | Korean Industrial Standard Certificate (KS C 1614) | 2004.01.28 | |
| KS | Korean Industrial Standard Certificate (KS C 1613) | 2004.01.28 | |
| KS | Korea Laboratory Accreditation Scheme | 2003.11.06 | |
