Solar electronic watch need batteries?

Solar energy directly and often visible in our lives, digital display of the way to make it easier to choose from. So solar electronic watch need batteries? The specific issue concrete analysis, solar digital watches a lot of in our life, we often used in cold storage DST2002S model of, for example, to tell you something about the problem. Models: DST2002S types: solar digital display material: stainless steel shell, stainless steel temperature measuring head header: 50 mm table: PC thermal line length: 1. 2 meters temperature range: - 50/150℃, ℉ : precision & plusmn; 1% resolution: 0. 1° CON/OFF switch to save electricity back-up power: 8 # battery at low temperature, high temperature AG13 button battery installation: installed flange dashboard from its parameters after we can see that it is a battery, a solar energy electronic watch it has a bright LCD display, easy reading, display here is a black chip, it is a solar wafer, is to rely on it to receive the sun, when light levels high 100 lux will show that the temperature of the object to be tested; When the light levels drop, with a backup battery to provide power to continue to display circuit. The power switch ( OFF/ON） Equipped with can have the effect of saving electricity, more environmentally friendly.