Multifunctional High Frequency EMP Generator Electromagnetic Pulse Generator Fingerprint Lock Detector LightBulb Detector

Features:
Compact size for easy carrying and operation.
It can be used to check the quality of lightbulbs or fingerprint locks.
Plug-in emitting heads, triode can switch by yourself.
High frequency power, fine effect, more stable.
Two gears for a strong effect.
The coil can be adjusted by yourself. If the coil is reduced, the power will be reduced, otherwise, the power will be increased.