Multi-voltage-grade optional electroscope

The invention discloses a multi-voltage-grade optional electroscope, which comprises: a detection probe, which internally comprises a starting circuit, an oscillating circuit, a sound-light alarm circuit, and a self-checking circuit; an indicator, the surface of which is fixedly equipped with an experiment button, an LED display screen, an alarm indicating lamp and a voltage change-over switch; atelescopic insulating rod; and a rubber handle; wherein one end of the detection probe is fixedly connected with the indicator, one side of the indicator is fixedly connected with the telescopic insulating rod, and one end of the telescopic insulating rod is fixedly connected with the rubber handle. The multi-voltage-grade optional electroscope is simple in structure, convenient to carry and use,low in cost and high in efficiency; operation and maintenance personnel only need to carry one electroscope on site to meet the electricity testing requirements of all voltage grades. 本发明公开了一种多电压等级可选择验电器，包括：检测探头，所述检测探头内部包括启动电路