Here is a highly effective way to alert you to any unauthorized use of important electronic devices. By using this flashing LED and alarm as a security device, it can serve as an inexpensive way to protect valuable units against theft and vandalism. If the protected unit is opened, the electronic Select-Alert emits a selected ear piercing siren and the super bright LED flashes - drawing attention in a hurry. The alarm and LED light have independent timing choices of: 15 seconds, 30 seconds, 60 seconds or continuous. Select-Alert is fitted with a 9 VDC battery or external 12-30 volts. It can be used as a cabinet alarm, door alarm, link with push button/switch or burglar alarm. Patent pending.