From now on, no one will be able to get past you without you noticing - without having to lay cables or install light barriers. With this kit, you can build your own small security system for your home. All the electronic components you need are included in the kit. The components can be soldered to the pre-assembled circuit board in just a few simple steps. Do you have little soldering experience? No problem. The assembly is kept simple and explained step by step in the detailed instructions. The alarm system has one freely usable additional alarm input and output each, to which additional alarm transmitters or sensors can be connected.