ThermoPro Waterproof Wireless Pool Thermometer Easy Read, Digital Pool Thermometer Floating for Swimming Pool, Upgraded IPX8 Water Temperature Monitor for Hot Tub, Cold Plunge, Ice Bath, Pond

This sensor/transmitter is specially designed for measuring the water temperature in swimming pools, hot tubs, spas and so on. If monitoring ambient/outdoor air temperature, it may be inaccurate【More Durable Sensor】Floating...