BuiltIn Temperature Monitoring This compact 12.5 cm floating dispenser includes an integrated thermometer, providing instant water readings in Fahrenheit and Celsius for spa or pool maintenance. Versatile Pool Spa Compatibility Designed for use with sanitizing tablets across hot tubs, spas, inground pools, and aboveground pools. Secure TwistLock Lid Design The locking lid keeps tablets contained and releases them at a controlled, steady rate for consistent water care results. Durable LongLasting Construction Fabricated from resistant ABS plastic, this feeder tolerates prolonged exposure to pool water, delivering reliable performance over time. Use scenarios Hot tub or spa maintenance: Float the device in a hot tub to maintain a steady tablet release while monitoring the water temperature. Inground pool season: Use in an inground pool to provide continuous dosing and track temperature to adjust maintenance as needed. Aboveground pool seasonal use: Ideal for aboveground pools, delivering even sanitizer release with temperature readings to guide care.