Material: The portable water heater features a stainless steel protective cover, which is safe and rustproof, and dissipates heat into the water more quickly through the holes in the cover. Thermostat and Automatic Shut-Off: This 2000W immersion water heater has two heating modes and automatically shuts off after reaching the set temperature. It also features a temperature setting with a shut-off memory function and real-time temperature monitoring without the need for an external thermometer. Easy to Use: Simply place the immersion water heater in the water (the heater must be fully submerged) and connect it to a 110V power supply. The water temperature will gradually increase after a few minutes, and you can monitor the real-time water temperature on the LCD screen. Fast Heating: This portable pool heater utilizes advanced heating technology and offers good thermal conductivity, providing rapid heating capabilities and allowing it to heat up to 5 gallons of water in just minutes. This fast heater saves time and energy, making it ideal for various uses, including small pools and daily baths. Widely used: Our portable heater is small in size, perfect for home, travel, and on-the-go use. It can be used in containers of various sizes, such as buckets, basins, bathtubs, inflatable portable mini-pools, etc.