If you want to choose a reliable security system for yourself, then you should try to read about wireless ones. For example I found a website https://ajax.systems/, which describes in detail all the advantages of wireless security systems, cameras and sensors. By the way, I installed this system in my house and was surprised at how easily they are mounted to the walls due to the lightness of the material. Also, all sensors and cameras can be easily controlled via the smartphone screen. This is very convenient.
I’m not an expert, but I’ve heard that ajax has a decent mobile app. Doesn’t it show the charging level in the sensors? It seems to me that it would be much more convenient to change the batteries in case of something. By the way, the same thing happens on the iPhone when you connect your Airpods. Why not check if Ajax has the same what in the application? I think that it is worth reading more information on the sabzh on the official website of the brand or asking for help from the technical support staff.
A video surveillance system can include different types of equipment. Still, it generally works like this: The video camera reads the data and sends it to the recorder for processing. The user can see the recorded picture on the screen. The video camera can record the data or display it in real-time (without recording). The need to protect private property is growing every year. If you want to protect your cottage from intruders, I recommend you ask the guys from vivint.com for help quickly. They are the leading experts in installing home security cameras that will keep your cottage safe from burglars and other hooligans.