Hone your DIY soldering techniques on the Elenco Burglar Alarm Soldering Kit Enjoy the pleasure of having assembled and soldered it yourselfUse your completed Burglar Alarm to safeguard your stuffSurprise your little brother or sister with the burst of sound from this handy little DIY kitIncludes: PCB, electronic components, instruction and 25 watt soldering iron, stand and lead free, rosin core solder PCB measures 492mmX445mmX16mmAdd this kit to your STEM curriculum From the company that brings you Snap Circuits - 9 volt battery not included