... easily, safe and reliable8. Alert device for failure of water level, water temp, water instability and refrigeration9. No Pain, No side effect, ... daily life.10. Magnetic drive Japanese pump + big water tank controlled water circulation: lower noise, longer lifetime.11. Various ... of Pulse 1~99ms,adjustableSub-pulse Width 0.1~9.9ms,adjustableCycle 1~4s,adjustableCooling Way semiconductor +wind + water ...