Sound of a Geiger Counter for your dioramas! Size_3mm LED When we want the whole

When we want the whole LED to show like on the back ledge

You can shorten either of these wires if needed

We find that to be the case in the storms we get here in Colorado

is already set up with a resistor and rectifier for your own power supply

and the signs will default to the correct size for your scale:

Sound of a Geiger Counter for your dioramas! Size_3mm LED When we want the wholeThis realistic Geiger counter sound is a great addition to your modeling and Sci Fi projects. The sound loops for as long as you play it. Use the included battery snap switch to turn the counter sound effect on and off. Consider this for sound in your scale model trains as a train station telegraph. "What do I need to run this siren?" 7 12 volt battery regulated adapter Your own battery, or for 9 volt get our 9 volt battery snap switch or plug in 12