PoolSupplyTown Pool Spa Jacuzzi Hot Tub Floating Animal Thermometer with F/C Display- Goldfish (For In-ground Pool and Above-ground Pool) Read Range: 30-120 F / 0-50 C. Size: About 9 inch tall (including animal body). Made from durable ABS plastic to last from season to season. Includes rope tether to keep the thermometer from floating away. It floats in the water. Good for pool, spa, hot tub, Jacuzzi