feature: 1. Heats up in 3 seconds, no waiting, no water storage, no preheating, energy saving and environmental protection, high thermal efficiency. 2. It has multiple protections such as leakage, dry-heating, water and electricity isolation, etc., and automatically cuts off the power when overheated. 3 . The water flow sensor is sensitive to changes in water pressure and can work normally even when the water pressure is as low as 0.04MPA. 4. The 304 stainless steel waterway extends up to 1.8m, which improves heating stability and stabilizes water temperature. 5. Made of high quality stainless steel and copper, high hardness, wear resistant and durable, not easy to damage and long service life. Specification: Item Type: Water Heater. Material: 304 Stainless Steel + Brass Weight: about 1505g/53.1oz Product size: about 29 x 19 x 8cm/11.4 x 7.5 x 3.1in Frequency: 50-60Hz Heating element: steel stainless Use water temperature: 35-55C Wire specification: 4mm copper wire Water pressure: 0.04-1.2 MPa Waterproof level: IPX4 Control mode: fixed frequency White color packing list: 1x water heater 2 x screws 2 x expansion tubes 1x description Note: 1. Due to manual measurement, please allow 0-2cm deviation. Thank you for your understanding. 2. Due to different monitor calibrations, the color of the item shown in the photos may vary slightly from the actual item. Please refer to the actual product.