General description Wireless Digital Swimming Pool Temperature Floating Thermometer is designed to accurately and quickly measure the water temperature of pools and spas. It features a waterproof and floating transmitter, making it suitable for both indoor and outdoor use, including swimming pools, spas, hot tubs, aquariums, and ponds. Technical specifications Temperature measurement range: -40~60℃ / -58~+140℉ Indoor temperature range: -0~+50℃ Outdoor visible distance: 100 meters Frequency: 433MHz Update speed: Every 90 seconds (lasts for 10 seconds) Screen power supply: 2 pcs AAA 1.5V alkaline battery (not included) Transmitter size: approx. 16cm / 6.29 inch Screen size: approx. 12 x 7.7cm / 4.72 x 3.03 inch Compatibility and accessories Includes: 1 x Wireless Swimming Pool Floating Thermometer Transmitter 1 x Wireless Swimming Pool Display Floating Thermometer 1 x User Manual Installation After installing the battery, ensure that the ring seal is tightened to prevent leaks. Usage