- avoid disasters when drilling holes in walls
- locate pipes, cables, metal studs, &
- great project for novices
- your own unique application
- push button operation
- metal detecting distance adjustable: up to 3.15″
- power supply: 9V battery (not incl.)
- LED indication
- 12VDC-buzzer connection (buzzer not included)
- dimensions: 2.2″ x 2.5″
- If you experience difficulties with the calibration of the unit (ie if the LED doesn’t turn off, when there isn’t any metal present ), replace C1 with a ceramic 1.2nF (122) capacitor. This behaviour is due to a spread on the component values and differences created when winding the coils.
- For those wanting an audible signal, space is provided on the print for connecting a buzzer type SV8. The small PCB has been specially designed to be incorporated into the separately available casing type G407.