If you ever played "Zap", this is just an adjustable version of the thermal switch (or whatever it was called) https://www.myabandonware.com/game/zap-3su https:

If you ever played "Zap", this is just an adjustable version of the thermal switch (or whatever it was called) https://www.myabandonware.com/game/zap-3su https://www.myabandonware.com/game/zap-3su