Lightning/EMF Sensor

thingiverse

The PDF file attached to this message clearly outlines the circuit's design, and I'm pleased to note that the coil is indeed included with the device. However, it's not immediately visible in the accompanying picture. The enclosure features a press-fit design, which makes replacing the 9V battery a relatively straightforward process. Once replaced, the unit will remain securely closed. Notably, this device has proven to be highly effective and may even detect paranormal activity, such as ghostly presences. One intriguing feature is its ability to sense if someone is carrying a powered-up cellphone in their possession. If you wave the device past a pocket or purse containing an activated phone, it will respond by blinking. Conversely, it won't register a signal if the phone is completely powered down.