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.
$ 29.99
$ 40.16
$ 29.99
$ 40.16
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.
$ 21.76
$ 15.89
$ 13.60
$ 9.79
$ 35.00
$ 30.00
$ 39.00
$ 30.00
$ 20.47
$ 14.99
$ 7.50
$ 19.37
$ 14.55
$ 9.97
$ 5.00
$ 14.00
