详细规格及用途描述
Tests for voltage from 80V to 1000V AC.
1. Light & sound indications:
Low gear (L): red light indication.
Hight gear (H): red light indication.
2. Power off with knob.
3. Over voltage category: CAT III.
4. Power supply: battery "AAA" x2
5. With UL and cUL approvals.