Radioactive medicine sensor device, used for guessing like a coin facing up or down. You can apply the medicine onto the coin, cover the cover and the sensor device will know if the coin face up or down.
You can also use it for dice, wood, plastic gambling tools… signal out: shake.
radioactive medicine sensor device set : 1 set
Made in China
This device is widely used for private poker party, party gamble, casino, poker match, magic show.