Wireless activated buzzer/alarm
Can someone help me with this?
I need a wireless activated buzzer or alarm. Similar to the cheap wireless doorbells where you push the button on the remote and the bell rings. Release the button, and it stops. But it needs to be a loud sounding buzzer or alarm, fairly high decibels, and did I mention very inexpensive?
Also, the buzzer/alarm part needs to be as small as possible.
I appreciate all your help!