The Siren Alarm kit includes a solderless breadboard, components, and circuit diagram that you can use to build your own siren / alarm. It uses a 555 timer IC circuit to generate a high pitch siren or alarm sound. Requires jumper wire for assembly and one 9V battery for operation.
Note: Step by step instructions are not included - use the included parts list to identify the components and assemble according to the included circuit diagram. Jumper wire not included (breadboard accepts 21 to 26 AWG wire).