Franzis Alarm System Kit


  • Protect yourself against unwanted visitors
  • Build your own small security device
  • Includes all the components required to build
  • Solder the components to the pre-assembled circuit board
  • Responds to variations in air pressure when doors or windows are opened or closed
  • International Express shipping available
  • 30 day easy returns
Guaranteed Safe Checkout


Prevent anyone getting passed you without you noticing it! You won’t have to lay any cables or install light barriers. With the Franzis Alarm System you can build your own security device.
Not suitable for children under 14

Additional information

Weight 0.158 kg

Franzis Verlag GmbH


‎19 x 4.4 x 24 cm; 158 Grams