Blood glucose meter, also known as blood glucose meter, is an electronic instrument for measuring blood glucose level. The blood glucose meter can be divided into photoelectric type and electrode type from the working principle. The test principle of electrode type blood glucose meter is more scientific, and the electrode can be stored inside.
Principle
There are two kinds of blood glucose meters from the working principle, one is photoelectric type, the other is electrode type. The photoelectric blood glucose meter is similar to a CD player. It has a photoelectric head. Its advantage is that the price is relatively cheap. Its disadvantage is that the detector head is exposed to the air, so it is easy to be polluted and affect the test results. The error range is about plus or minus 0.8, and the service life is relatively short,
Generally, it is accurate within two years. After two years, it is recommended that patients who are using photoelectric machines go to the maintenance station for calibration. General hospitals have hospital representatives to carry out regular maintenance, while household blood glucose meters should go to the after-sales service department for bald maintenance. The electrode type test principle is more scientific. The electrode mouth is hidden, which can avoid pollution. The error range is generally about plus or minus 0.5. High precision, no calibration required under normal use, long service life. There are two blood collection methods for blood glucose meter, one is blood smearing type, and the other is blood sucking type. The machines for wiping blood usually collect a large amount of blood, and the patients are in pain. If more blood is collected, the test results will be affected. If the blood volume is insufficient, the operation will fail and the test paper will be wasted. Most of these blood glucose meters are photoelectric. The blood glucose meter is a blood sucking type. The test paper controls the blood sample measurement by itself. There will be no result deviation due to the problem of blood volume. It is easy to operate. Just click a blood drop with the test paper.