Floating Digital Pool Thermometer Wireless Swimming Water Temp Sensor for Spa UK
You can choose the temperature unit you want through the "C/F" button. Outdoor temperature comfort indicator;. Indoor temperature range: -9.9 ℃ to+50 ℃ (14.2 ℉ to 122.0 ℉), with a resolution of 0.1 ℃/℉.