Ovoz darajasini tekshirgichni quvvat va avtomatik o'chirish
1. Hisoblagichni yoqish uchun POWER tugmasini bosing.
2. Hisoblagichni o'chirish uchun POWER tugmasini yana bosing.
3. The meter has an automatic power off feature that conserves battery energy. After 10 minutes the meter automatically shuts off.
4. To press and hold the H button to turn the meter on, the auto power off function will be cancelled. and the icon disappears.
