With its ability to emit colorful light at night, the solar-powered pool thermometer not only serves as a practical temperature monitoring tool but also adds a decorative element to the pool environment after sunset. This unique feature creates a visually appealing ambiance while also providing essential temperature information to optimal pool conditions. LED Colorful Lights: Emitting Multicolored Light at Night How to Use: Charge it under sunlight during the day, turn on the switch at the bottom, and it light up with colorful lights at night. Turning off the switch (turning off the switch does not affect charging) turn off the colorful lights. Temperature Display: Accurate temperature readings in Fahrenheit and Celsius units. Can test temperatures from -30 to 120. The high-precision thermometer ensures accurate temperature readings, ensuring comfort and your bathers. Wide Application: pool thermometer is suitable for various use cases, such as all outdoor and indoor swimming pools, spas or hot tubs, aquariums, fish ponds, and ponds. If you have any questions or concerns, please to contact us, and we provide you with a satisfactory solution. Note: Installation guide not included, we strongly recommend you professional installation. Please check as much as possible to make sure the item is what you need. Tips:The product may be updated constantly ,Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect Use. Colour:Transparent Material:Plastic Package Contents: 1 x Pool Thermometer Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.