Whelen E-747 Siren Activation Encoder Demo!

Brief Encoder Demo. Enjoy!

[@novawarningsirens]

Just to answer your question, yes these are still made

[@purpleviolet207]

A very interesting demo of the Whelen E-747 Siren Activation Encoder!

[@emrilbennett8704]

This is pretty cool!

[@bluepizzaman735]

What kind of cable and Adapter is that?

[@adamcrane1436]

Hello

[@charlie_nolan]

Whelen just uses DTMF… wow that’s very hack-able