Safe and durable materials This pool thermometer uses a robust PP housing with enduring components, designed for spa and pool environments. It resists environmental factors and maintains reliable temperature measurement for long-term use. Easy to use and maintenance free Battery-free operation means no batteries to replace. It starts reading reliably in 1-2 minutes. Its compact, lightweight design makes regular pool care easy and convenient. Accurate pool temperature readings Provides precise and dependable values over a wide temperature range with a dual scale for convenient reference in pools and spas. Clear readings help you maintain comfortable and safe water conditions. Clear visibility and readability An extra-large, easy-to-read display delivers temperature data at a glance, enabling quick and effortless monitoring. Use scenarios - Home pool care: daily checks to keep poolwater within your preferred range without hassle. - Spa or hot tub monitoring: confirm water temperature before use for comfort and safety. - Shared or hotel pools: fast, on-site checks to ensure guests experience consistent water temperatures. No batteries required Compact, reliable, and simple to operate, this thermometer is designed to support regular temperature monitoring in spa and pool settings.