Installation is simple and well documented. The alarm goes to the marrow. The unit complies with all legal requirements, where they are already in force or will come into force. However, the buyer is also patronized the purposes of this law, can not have individual settings such as an adjustment of alarm volume. A flashing light, the minutely documented operation might want, not everyone have in the bedroom. But it can not turn off. One can not even interrupt the operation. The battery can not change themselves. The smoke detector has with her to (hopefully) ten years on the waste. In plain English: The device provides after activating his service without any possibility of influencing. One does not feel that any of these object ever even heard because you can not use for their own provisos him. It should cost I think the private citizen no money.
