| ABX Pentra Sodium-E | 03610230005835 | HORIBA ABX SAS | Unknown class | |
| ADVIA Chemistry Sodium Electrode | 00630414482316 | Siemens Healthcare Diagnostics Inc. | Unknown class | |
| EasyLyte Neo Sodium Electrode | 00379497006391 | Medica Corporation | Class B | |
| Electrode Na | 08426950015185 | Instrumentation Laboratory SpA | Class B | |
| Electrodes For Electrolytes And Biochemical Analyzers | 06975200381461 | Shenzhen Xilaiheng Medical Electronics Co.,Ltd. | Unknown class | |
| Maxlyte | 89061707102326 | Avecon Healthcare Pvt. Ltd. | Class A | |
| Na electrode | 04980679110025 | JOKOH CO.,LTD. | Unknown class | |
| Na electrode | 04980679110278 | JOKOH CO.,LTD. | Unknown class | |
| Na⁺ Electrode | 04560161906758 | Furuno Electric Co., Ltd. | Class B | |
| Reference solution | 04980679110360 | JOKOH CO.,LTD. | Unknown class | |
| Sodium electrode | 06903053025126 | Shenzhen Mindray Bio-Medical Electronics Co., Ltd. | Class B | |
| Sodium electrode | 06936595774429 | MedicalSystem Biotechnology Co., Ltd. | Unknown class | |
| Sodium electrode | 06944904024622 | Shenzhen Mindray Bio-Medical Electronics Co., Ltd. | Class B | |
| Sodium Electrode (Na+) | 03701700828129 | VitalScientific | Class B | |
| Sodium Micro Volume Electrode | 16438153815942 | Thermo Fisher Scientific Oy | Class B | |
UDI Compass