| 摘要 |
A combination electric field sensor and a flashlight with at least one main LED disclosed that uses a voltage multiple circuit that enables the use of a single AA or AAA battery. The voltage multiple circuit raises the battery voltage from 1.5 volts to approximately 5 volts required to sufficiently energize the main LED. The device includes a voltage detector circuit with a sensor probe which detects the presence of an electric field when the device is placed adjacent thereto and a second LED. The second LED is connected to the voltage detector circuit and designed to flash when placed against an electric field.
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