Hello!my friend!i am ada!we are the producer of the the alarm system!for the family,the fire, the smoke and more, for eg:we make the electronic siren, the piezo siren, the detector series, the magnetic switches, the emergency button, the fire alarm bell and more, all of them , if you want, we can offter to you, in a word, since we are the expert, our creation always,at the same time we can also design for you, just for you!your idea, our product for you!thks!let's shake hands!thks!
our web is :
if you want to know more, pls pay attention to our web!thks!keep in touch!