Short Circuits Three Project - Ding Dong Door Bell Protective The FIRST single plane scanner

The FIRST single plane scanner available to support Digimarc Barcode digital watermarks which increase productivity by up to 30% while improving user ergonomics

39-type OLED Electronic Viewfinder

Built in Speaker(10W x 2)

Hi-vis Orange Colour

Short Circuits Three Project - Ding Dong Door Bell Protective The FIRST single plane scannerAssembly Required Another useful little kit that generates the sound of a classic Ding Dong door bell. Just the thing for your front door. Kit includes PCB, speaker and all components. 12VDC power required. Instructions sold separately or withing the Short Circuits book range, Short Circuits Books are available for Download Here For More Information on Kids science electronics projects Click Here for Kits for Kids