The unit and the remote control are well made. 9V was there. The sensibility is perfectly ok. Have the part bought as an alarm system for my Backpack (to secure him, for example, for the short toileting against opportunist thieves). If vibration or slight changes in position of alarm triggers -and indeed hellishly noisy! Depending on where I hide it in my backpack, I can control the level of good. The alarm silenced after tripping after about 15 sec., But remains sharp and sets again on renewed movement going on. The reach of the remote control seems to be more than 15 meters (as far as I was able to test the previously in the apartment) and certainly to work through walls. In a 12V transmitter cell is changeable installed. Another tip: If the unit (as I use), for example in a rucksack is to be applied, so it is advisable to remove the magnet from the housing to prevent possible damage to which is also located in the backpack bank cards etc.. In addition I have opened the case and drilled the back shell of the recess for the magnet with a Minimot from the inside to push through the resulting opening the magnet. Ps. The magnet hidden under nem Aufleber. So overall a very good investment and highly recommended as a mobile alarm system. Also suitable as personal protection when the plant out of his pocket is simply activated during a robbery and triggers by moving immediately !! For the price absolutely top!
