| Free Thyroxine（FT4） Diagnostic Kit ( Immunochromatographic Assay) | 06971348761202 | Shenzhen Microprofit Biotech Co., Ltd | Unknown class | |
| Free Thyroxine（FT4） Diagnostic Kit ( Immunochromatographic Assay) | 06971348762209 | Shenzhen Microprofit Biotech Co., Ltd | Unknown class | |
| Free Thyroxine（FT4） Diagnostic Kit ( Immunochromatographic Assay) | 06971348762728 | Shenzhen Microprofit Biotech Co., Ltd | Class B | |
| Free Thyroxine（FT4） Diagnostic Kit ( Immunochromatographic Assay) | 06971348764647 | Shenzhen Microprofit Biotech Co., Ltd | Class B | |
| Free Thyroxine (fT4) ELISA | ++B261CANFT44340QN | Diagnostics Biochem Canada Inc. | Unknown class | |
| Free Thyroxine (fT4) FIA | 06952804803865 | Assure Tech. (Hangzhou) Co., Ltd. | Unknown class | |
| Free Thyroxine (FT4) Quantitative Diagnostic Kit (CLIA) | 06974671101714 | Darui Biotechnology Co., Ltd. | Unknown class | |
| Free thyroxine (FT4) Quantitative Test Kit(Dry Fluorescence Immunochromatographic Assay, FIA) | 06979355923712 | JIANGSU CONFIDENCE MEDICAL TECHNOLOGY CO.,LTD | Unknown class | |
| Free thyroxine (FT4) Quantitative Test Kit(Dry Fluorescence Immunochromatographic Assay, FIA) | 06979355923729 | JIANGSU CONFIDENCE MEDICAL TECHNOLOGY CO.,LTD | Unknown class | |
| Free thyroxine (FT4) Quantitative Test Kit(Dry Fluorescence Immunochromatographic Assay, FIA) | 06979355923736 | JIANGSU CONFIDENCE MEDICAL TECHNOLOGY CO.,LTD | Unknown class | |
| Free thyroxine (FT4) Quantitative Test Kit(Dry Fluorescence Immunochromatographic Assay, FIA) | 06979355923743 | JIANGSU CONFIDENCE MEDICAL TECHNOLOGY CO.,LTD | Unknown class | |
| Free thyroxine (FT4) Quantitative Test Kit(Dry Fluorescence Immunochromatographic Assay, FIA) | 06979355923750 | JIANGSU CONFIDENCE MEDICAL TECHNOLOGY CO.,LTD | Unknown class | |
| Free thyroxine (FT4) Quantitative Test Kit(Dry Fluorescence Immunochromatographic Assay, FIA) | 06979355923767 | JIANGSU CONFIDENCE MEDICAL TECHNOLOGY CO.,LTD | Unknown class | |
| Free Thyroxine (FT4) Rapid Quantitative Test | 06975278860714 | Xenta Biomedical Science Co., Ltd. | Unknown class | |
| Free Thyroxine (FT4) Rapid Quantitative Test | 06975278860721 | Xenta Biomedical Science Co., Ltd. | Unknown class | |
| Free Thyroxine（FT4）Rapid Quantitative Test（Fluorescence Immunoassay） | 06975068490398 | WWHS Biotech.Inc | Unknown class | |
| Free Thyroxine (FT4) Test Kit | 06973315734660 | Nanjing Vazyme Medical Technology Co.,Ltd. | Unknown class | |
| Free Thyroxine (FT4) Test Kit (CLIA Method) | 36974969797446 | Chongqing iSIA BIO-Technology Co., Ltd. | Unknown class | |
| Free Thyroxine (FT4) Test Kit (CLIA Method) | 56974969797440 | Chongqing iSIA BIO-Technology Co., Ltd. | Unknown class | |
| Free Thyroxine (FT4) Test Kit (Homogeneous Chemiluminescence Immunoassay) | 06974524061660 | Nanjing Poclight Biotechnology Co., Ltd. | Unknown class | |
| Free Thyroxine (FT4) Test Kit (Immunofluorescence) | 06950334813828 | Genrui Biotech Inc. | Unknown class | |
| Free Thyroxine (FT4) Test Kit (Immunofluorescence) | 06978198482042 | Shenzhen Huiyan Sci-Tech Biotechnology Co., Ltd. | Unknown class | |
| Free Thyroxine (fT4) Test Kit (Immunofluorescence Method) | 06973720131801 | WUHAN EASYDIAGNOSIS BIOMEDICINE CO., LTD. | Unknown class | |
| Free Thyroxine (fT4) Test Kit (Immunofluorescence Method) | 06973720131818 | WUHAN EASYDIAGNOSIS BIOMEDICINE CO., LTD. | Unknown class | |
| Free Thyroxine (fT4) Test Kit (lmmunofluorescence Method) | 06978896415540 | WUHAN EASYDIAGNOSIS BIOMEDICINE CO., LTD. | Unknown class | |
| Free Thyroxine (fT4) Test Kit (lmmunofluorescence Method) | 06978896415557 | WUHAN EASYDIAGNOSIS BIOMEDICINE CO., LTD. | Unknown class | |
| Free Thyroxine Kit (CLIA) | 06936595751079 | MedicalSystem Biotechnology Co., Ltd. | Unknown class | |
| Free Thyroxine Kit (Electrochemiluminescence Immunoassay) | 06970341680930 | Shenzhen Lifotronic Technology Co., Ltd. | Class B | |
| Free Thyroxine Kit (Electrochemiluminescence Immunoassay) | 06970341685928 | Shenzhen Lifotronic Technology Co., Ltd. | Class B | |
| Free Thyroxine Kit (Electrochemiluminescence Immunoassay) | 06970341685935 | Shenzhen Lifotronic Technology Co., Ltd. | Unknown class | |
| Free Thyroxine Kit (Electrochemiluminescence Immunoassay) | 06975984063072 | Shenzhen Lifotronic Technology Co., Ltd. | Class B | |
| Free Thyroxine test (Chemiluminescence Immunoassay) | 06936700403251 | Beijing Hotgen Biotech Co., Ltd. | Class B | |
| Free Thyroxine Test Kit (CLIA) | 10850076346062 | Healgen Life Science, LLC | Unknown class | |
| Free Thyroxine Test Kit (CLIA) | 20850076346069 | Healgen Life Science, LLC | Unknown class | |
| Free Thyroxine Test Kit (Immunofluorescence) | 06973841001274 | Guangdong Wesail Biotech Co., Ltd. | Unknown class | |
| Free Thyroxine test (Up-converting Phosphor Technology) | 06936700408744 | Beijing Hotgen Biotech Co., Ltd. | Class B | |
| Free Thyroxin (FT4) Quantitative Diagnostic Kit (TRFIA) | 06974671101363 | Darui Biotechnology Co., Ltd. | Unknown class | |
| FREND Free T4 | 08809317540191 | NanoEntek, Inc. | Unknown class | |
| FREND Free T4 | 08809317540382 | NanoEntek, Inc. | Unknown class | |
| FREND Thyroid Duo | 08809317540368 | NanoEntek, Inc. | Unknown class | |
| FREND Thyroid Duo | 08809317540474 | NanoEntek, Inc. | Unknown class | |
| FT3, FT4 & TSH AccuBind VAST ELISA Kit - 192 wells | 00816870021850 | Monobind Inc. | Unknown class | |
| FT3, FT4 & TSH AccuBind VAST ELISA Kit - 480 wells | 00816870021867 | Monobind Inc. | Unknown class | |
| FT3, FT4 & TSH AccuBind VAST ELISA Kit - 960 wells | 00816870021874 | Monobind Inc. | Unknown class | |
| FT3, FT4 & TSH AccuBind VAST ELISA Kit - 96 wells | 00816870024431 | Monobind Inc. | Unknown class | |
| FT3, FT4 & TSH AccuLite VAST CLIA Kit - 192 wells | 00816870023298 | Monobind Inc. | Unknown class | |
| FT3, FT4 & TSH AccuLite VAST CLIA Kit - 480 wells | 00816870023304 | Monobind Inc. | Unknown class | |
| FT3, FT4 & TSH AccuLite VAST CLIA Kit - 960 wells | 00816870023311 | Monobind Inc. | Unknown class | |
| FT3 rapid test cassette (Rare earth nano fluorescence immunochromatography) | 06974323013198 | Beijing Applied Biological Technologies Co., Ltd. | Unknown class | |
| FT3 rapid test cassette (Rare earth nano fluorescence immunochromatography) | 06974323013204 | Beijing Applied Biological Technologies Co., Ltd. | Unknown class | |
UDI Compass