You can own a highly sensitive static field detector for paranormal activity.
After 6 months of continuous use of 3 prototypes I am highly confident in the design.
It was great fun laying out the PCBs and building these units (now dubbed SFD1): they are ready to ship.
User Manual [
Link]
Updated Parts List
[Link]
If you just want to get the PCB
[Link]
The PICAXE Code
[Link]
My other interests
[Link]