There are two types of blood glucose meters in terms of working principle, one is photoelectric type and the other is electrode type. The photoelectric blood glucose meter is similar to a CD machine and has a photoelectric head. Its advantage is that the price is relatively cheap. The disadvantage is that the probe is exposed to the air, which is easily polluted and affects the test results. The error range is about plus or minus 0.8, and the service life is relatively short. , is generally more accurate within two years. After two years, it is recommended that patients who are using the photoelectric machine go to the maintenance station for a calibration. . General hospitals have hospital representatives for regular maintenance, while household blood glucose meters need to go to the after-sales service department for bald maintenance.
The test principle of the electrode type is more scientific. The electrode port is built in, which can avoid pollution. The error range is generally about plus or minus 0.5. High precision, no calibration required under normal use, long life.
There are two types of blood glucose meters, one is the blood-smearing type, and the other is the blood-sucking type. The blood smearing machine generally collects a large amount of blood, and the patient is more painful. If the blood collection is too much, it will also affect the test results. If the blood volume is insufficient, the operation will fail and test strips will be wasted. Most of these blood glucose meters are photoelectric. Blood-sucking blood glucose meter, the test strip controls the blood sample measurement by itself, there will be no deviation in the results due to the problem of blood volume, and the operation is convenient, just tap the blood drop with the test strip.
Nowadays, most blood glucose meters are damaged, that is, blood sampling is required. For patients who need to measure blood sugar multiple times, there are no damaged blood glucose meters, but the price is very high! In order to reduce the pain of fingertip blood collection for patients, two blood glucose meters for arm blood collection are now available