Indicates that the measured water temperature exceeds the minimum and maximum temperature range, our temperature range is 14 to122 ℉ (-9.9 to 50 ℃). If the reading seems to be abnormal, please tr to replace the batteries or contact us for assistance.
HCS706ARF+707RF Floating Pool Thermometer FAQ
Pool sensor shows HH.H.or LL.L.
Sensor does not show a reading for more than 15 mins or suddenly stops showing.
Replace the batteries.
Check the sensor is tightened properly. If water has seeped in, please contact us for a replacement.
When the product is placed in water without installing batteries, it cannot stay upright.
Please install the batteries into the product before placing it in water. The
product will automatically adjust to an upright position.