1Instant hot water heater, fast heating in 3 seconds, no need to preheat, high thermal efficiency. 2No need to store water, energy saving and environmental protection, suitable for home kitchen, bathroom and toilet. 3The water flow sensor can be sensitive to changes in water pressure, and it can work as low as 0.04MPA. 43-dimensional surround design, 304 stainless steel waterway extends up to 1.8 meters, which improves heating stability. 5Exquisite brass inlet and outlet, sturdy and durable to make sure that the water source is not polluted again. 6With leakage protection, dry heat protection, water electricity isolation, with auto power off inactive state, overheat auto power off. Item Type: Water HeaterMaterial: Copper, BrassHeating Body Material: Stainless SteelColor: BlackFrequency: 50-60HzUse Water Temperature: 35-55Wire Specification: 4mm Copper Core WireUse Water Pressure: 0.04-1.2MPaWaterproof Rating: IPX4Control Mode: Fixed FrequencyWeight: Approx. 1490g / 52.6ozSize: Approx. 29x19x8cm / 11.4x7.5x3.1in 1 x Water Heater2 x Screw2 x Expansion Tube1 x Manual 1. Please allow 0& 8209;1 inch error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.