3500W Electric Water Heater with ESD Safety System Safe with an ESD system that immediately cuts off power when a short circuit is detected. Grilon boiler, rust-resistant, scale-free, and seam-free, eliminating leakage issues. Incoloy 800 heater, highly durable and resistant to corrosion, with no scale buildup. Energy-saving with a 5-star energy efficiency rating, certified by Thai Industrial Standards (TIS). Product Details: The Grilon boiler material is rust-resistant and scale-free, with a seamless design to prevent leakage issues. The Incoloy 800 heater material is highly durable, corrosion-resistant, and does not cause scale buildup. Easy to control with a dial to adjust the temperature as needed. The ESD safety system cuts off the electrical current within 0.08 seconds when leakage exceeds 8mA. A water temperature detection system automatically shuts off the heater when the water temperature exceeds 57°C (temporary shutdown) and 85°C (permanent shutdown) to prevent accidents due to malfunction. Flow Switch Control supports low water pressure from 0.15 bar and immediately cuts off when there is no water flow. Certified with Thai Industrial Standard (TIS) and Energy-saving Label 5. 7-year warranty on the boiler and heater coil. Comes with a 5-in-1 high-pressure shower head.