This magnetic alarm beeps when the door is opened to warn you of intruders. It's a fun project exploring how a magnetic switch works in an electric circuit.
Requires 2 x AAA batteries.
Age 5+ years.
This magnetic alarm beeps when the door is opened to warn you of intruders. It's a fun project exploring how a magnetic switch works in an electric circuit.
Requires 2 x AAA batteries.
Age 5+ years.