Features: Replacement accessories for the round swimming pool cover, equipped with a temperature indicator, which can help you control the water temperature and create a comfortable SPA. The dial is made of high-quality ABS material, and the temperature measuring rod is made of aluminum material, which is durable and shatter resistant, so you can use it for a long for time. Large indoor & outdoor thermometer with easy-to-read temperature scale from a long distance. No battery needed. Suitable for many occasions, such as outdoor swimming pool, bathroom, aquarium. Easy to use. Large temperature reading display in Celsius, reading up to 40 Celsius. Specifications: Material: ABS Diameter: 186mm/7.3 inch Rod length: 277mm/11 inhch Thickness: 35mm/ 1.4 inch Whole length: 312mm/12.3 inch Package Includes: 1x Floating Pool Thermometer note: Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item.