doorbell for roleplayers

A doorbell for roleplayers. You need 4 things to create this. 1. a power source 2. a timer - set to something small like 1-3 seconds. 3. an RF broadcaster - make sure you change frequency every so often. 4. an RF pager - set to same frequency as RF broadcaster & set to silent mode. Alternatively you can attach the timer to multiple speakers & place them around your base instead. Quick note: in this example I've also included an RF receiver & flashing blue light to simulate the RF pager because Fortify doesn't have an RF pager module.