| T4-SBS AccuLite CLIA Kit - 96 wells | 00816870023137 | Monobind Inc. | Unknown class | |
| T4 Test Kit (FIA) | 06973841000956 | Guangdong Wesail Biotech Co., Ltd. | Unknown class | |
| T4 (Thyroxine) Rapid Quantitative Test | 06977565581340 | Coei Biotech Co.Ltd. | Unknown class | |
| T4 (Thyroxine) Rapid Quantitative Test | 16977565581347 | Coei Biotech Co.Ltd. | Unknown class | |
| T4 (Total Thyroxine) Rapid Quantitative Test | 06975679490480 | Hunan Ehome Health Technology Co., Ltd. | Unknown class | |
| Thyroid hormone Assay Kit(Chemiluminescent Immunoassay) | 06980222383287 | Chengdu Illumaxbio Technology Co.,LTD | Unknown class | |
| Thyroid hormone Assay Kit(Chemiluminescent Immunoassay) | 06980222383294 | Chengdu Illumaxbio Technology Co.,LTD | Unknown class | |
| Thyroxine Detection Kit (Chemiluminescence Immunoassay) | 06925794511812 | DIRUI INDUSTRIAL CO., LTD | Unknown class | |
| Thyroxine Detection Kit (Chemiluminescence Immunoassay) | 06925794523440 | DIRUI INDUSTRIAL CO., LTD | Unknown class | |
| Thyroxine Detection Kit (Chemiluminescence Immunoassay) | 06942202223907 | DIRUI INDUSTRIAL CO., LTD | Unknown class | |
| Thyroxine kit | 04251557100392 | Astra Biotech GmbH | Unknown class | |
| Thyroxine kit | 04251557100408 | Astra Biotech GmbH | Unknown class | |
| Thyroxine Kit (CLIA) | 06936595751055 | MedicalSystem Biotechnology Co., Ltd. | Unknown class | |
| Thyroxine (T4) Assay Kit (Chemiluminescent Immunoassay) | 06970522648926 | Sichuan Orienter Biotechnology Co., Ltd. | Unknown class | |
| Thyroxine (T4) Assay Kits (Lateral Flow Immunoassay) | 06978139075890 | Shenzhen Lifotronic Technology Co., Ltd. | Unknown class | |
| Thyroxine (T4) Assay Kits (Lateral Flow Immunoassay) | 06978139075975 | Shenzhen Lifotronic Technology Co., Ltd. | Unknown class | |
| Thyroxine (T4) Chemiluminescence Quantitative Immunoassay Kit | 06954376012614 | Beijing Leadman Biochemistry Co., Ltd. | Unknown class | |
| Thyroxine ( T4 ) Detection Kit(CLIA) | 06974674892923 | Shenzhen Zijian Biotechnology Co., Ltd | Unknown class | |
| Thyroxine (T4) Detection Kit(Fluorescence Immunoassay) | 06974674891568 | Shenzhen Zijian Biotechnology Co., Ltd | Unknown class | |
| Thyroxine (T4) ELISA | ++B261CANT44240FL | Diagnostics Biochem Canada Inc. | Unknown class | |
| Thyroxine (T4) Rapid Test Kit (Fluorescence Immunochromatographic Assay) | 06974464591456 | Guangzhou Decheng Biotechnology Co., Ltd. | Unknown class | |
| Thyroxine (T4) Test Kit (Immunofluorescence) | 06921893001193 | Nanjing Norman Biological Technology Co., Ltd. | Unknown class | |
| Thyroxine (T4) Test Kit (Immunofluorescence) | 06950334804550 | Genrui Biotech Inc. | Unknown class | |
| Thyroxine (T4) Test Kit (Immunofluorescence) | 06978198482066 | Shenzhen Huiyan Sci-Tech Biotechnology Co., Ltd. | Unknown class | |
| Thyroxine Test (Fluorescence Immunoassay) | 06979878281030 | Huzhou Jierunxin Biotechnology Co., LTD | Unknown class | |
| Tisenc Total Thyroxine (CLIA) | 06971824207316 | Shenzhen Tisenc Medical Devices Co., Ltd. | Unknown class | |
| Tisenc Total Thyroxine (CLIA) | 06971824207323 | Shenzhen Tisenc Medical Devices Co., Ltd. | Unknown class | |
| Tisenc Total Thyroxine (CLIA) | 06971824207330 | Shenzhen Tisenc Medical Devices Co., Ltd. | Unknown class | |
| Tisenc Total Thyroxine (CLIA) | 06971824207347 | Shenzhen Tisenc Medical Devices Co., Ltd. | Unknown class | |
| Total T4 | +ENTIDNOV0540A | Gold Standard Diagnostics Frankfurt GmbH | Unknown class | |
| Total T4 Chemiluminescent Immunoassay Kit | 06950617403289 | Maccura Biotechnology Co., Ltd. | Class B | |
| Total T4 Chemiluminescent Immunoassay Kit | 06950617403296 | Maccura Biotechnology Co., Ltd. | Class B | |
| Total T4 Chemiluminescent Immunoassay Kit | 06950617403302 | Maccura Biotechnology Co., Ltd. | Class B | |
| Total T4 Chemiluminescent Immunoassay Kit | 06950617403319 | Maccura Biotechnology Co., Ltd. | Class B | |
| Total T4 FIA | 06952804803124 | Assure Tech. (Hangzhou) Co., Ltd. | Unknown class | |
| Total T4 RIA KIT | 15099590214678 | IMMUNOTECH s.r.o. | Class B | |
| Total T4 Test Kit (Immunofluorescence Method) | 06975132464218 | Jiangsu Konsung Medical Technology Co., Ltd. | Unknown class | |
| Total T4 (TT4) Assay Reagent Kit (CMIA) | 06971792054653 | Hangzhou Realy Tech Co.,Ltd. | Unknown class | |
| Total T4 (TT4) Assay Reagent Kit (CMIA) | 06976753471135 | Hangzhou Cybereagen Biotech Co., Ltd. | Unknown class | |
| Total Thyroxine Assay kit(Chemiluminescence Immunoassay Method） | 06978465230758 | Shenzhen Dake Medical Technology Co.,Ltd | Class B | |
| Total Thyroxine Assay kit(Chemiluminescence Immunoassay Method） | 06978465230802 | Shenzhen Dake Medical Technology Co.,Ltd | Class B | |
| Total Thyroxine Assay kit(Chemiluminescence Immunoassay Method） | 06978465237511 | Shenzhen Dake Medical Technology Co.,Ltd | Class B | |
| Total Thyroxine Assay kit(Chemiluminescence Immunoassay Method） | 06978465237528 | Shenzhen Dake Medical Technology Co.,Ltd | Class B | |
| Total Thyroxine Assay kit(Chemiluminescence Immunoassay Method） | 06978465237535 | Shenzhen Dake Medical Technology Co.,Ltd | Class B | |
| Total thyroxine Assay Kit (Immunochromatographic Assay) | 06974986813876 | Wuhan Life Origin Biotech Joint Stock Co., Ltd. | Unknown class | |
| Total thyroxine Assay Kit (Immunochromatographic Assay) | 06974986813883 | Wuhan Life Origin Biotech Joint Stock Co., Ltd. | Unknown class | |
| Total thyroxine Assay Kit (Immunochromatographic Assay) | 06974986813890 | Wuhan Life Origin Biotech Joint Stock Co., Ltd. | Unknown class | |
| Total thyroxine Assay Kit (Immunochromatographic Assay) | 06974986813906 | Wuhan Life Origin Biotech Joint Stock Co., Ltd. | Unknown class | |
| Total Thyroxine Chemiluminescence Immunoassay Kit | 06955792740686 | Sansure Biotech Inc. | Unknown class | |
| Total Thyroxine Chemiluminescence Immunoassay Kit | 06955792740693 | Sansure Biotech Inc. | Unknown class | |
UDI Compass