Please read the instructions and precautions carefully before use. This product is not intended for use by children. During the heating process, avoid direct contact with the water. High-quality and safe design: The electric immersion heater features high-quality copper wire and is easy to carry. The external ABS housing and stainless steel anti-rust protection help prevent direct contact between the heating element and the user, enhancing safety and reducing the risk of accidents. Durable shell: The heater is made from new PP material, which is non-toxic, odorless, environmentally friendly, and long-lasting. Always read the safety instructions thoroughly before use, understand the precautions, and follow the operating guidelines carefully. Versatile use: Suitable for inflatable swimming pools, bathtubs, plastic buckets, foot tubs, and other similar containers. A convenient solution for maintaining water warmth in colder conditions. Package includes: 1 x Heater (automatically turns off at 70°C) Tips: 1. For water volumes exceeding 150 liters, it is recommended to use two heaters simultaneously for optimal performance. 2. Slight measurement variations of 2–3 cm may occur due to manual measurement. 3. Color differences may exist due to variations in monitor displays.