If you are suffering from Type I, Type II, or gestational diabetes, your doctor may advise monitoring blood sugar at home in addition to regular blood sugar tests at laboratory. A blood glucometer is an electronic device to measure blood sugar at home. It helps for more effective management of diabetes. Several types of blood glucometers are available, from basic to advance. A basic glucometer kit comprises of blood glucometer, single use needle and disposable test strips. To measure the blood sugar level, you need to prick your finger with the pen-like needle from the kit. Take the blood droplet from the fingertip on the test strip. Insert the test strip in the glucometer. The monitor will display the blood sugar level within few seconds. Various types of glucometers are available, in terms of ease of use and technology. Some of the more advanced glucometers are the wearable blood glucometers that monitors blood sugar levels continuously. These smart glucometers will alert when the blood sugar levels spike or are too low.