Single-Dial Knob Controller (w/ Audio) - Escape Room Prop

Introduction:
When the knob is turned to the user-set specified value it can trigger a light, a lock, a door, a safe, etc.


Features:
The controller can be powered directly to 12v electromagnetic locks.
Audio can be modified with the controller's built-in 8M capacity (no SD card); use a USB cable to connect the controller to a computer.

Product includes:
1 controllers
1 12v power supply
1 control knob