Tankless Instant Electric Hot Water Heater System Instant Hot Water Shower HeatLCD digital temperature display. Safe and intelligent, no water flow stops heating. Automatic power off when leakage. 3 seconds that is hot, really thermostat without waiting. It heats water as the water passes thru the unit, instant heating. Easy to install under the bathroom or kitchen sink for shower, washing dishes, food, clothes and other functions. Safe heater, electricity saving, water saving, no pollution, no exhaust gas. Leakage protection,