7,83 Hz Resonanz Ultra-Niederfrequenz Impulsgenerator eingebaute Batterie8311
18,10 €
Output waveform: square wave. 1 Wave Generator. Frequency: 7.83HZ. The blue light is flashing, the normal transmission state (normal work). If the switch is about to work, all the lights are off, indicating that the battery is low and needs to be.
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