Supervised wireless alarm helps prevent unauthorized exits and entries through emergency and rear doors. When protected door is opened, a 95/105 dB alarm sounds, drawing attention and helping to prevent theft and unwanted use. A signal is also transmitted to the receiver, alerting of the unwanted exit or entry. The alarm can be mounted on top, right, left of next to almost any door and the receiver offers 10 tone/tunes and 53 selectable words (English or Spanish).