Monitor your pools temperature from inside your home with La Crosse Technologys Wireless Pool thermometer and LCD display. Large 2" digital display receives transmitted data from pool thermometer within a 330 ft (100m) range and monitors the pools daily Highs and Lows. Quality floating pool thermometer features twist-on battery compartment to prevent water from entering and keyhole to attach separate cord or string to secure. Large 1" LCD displays pools current temperature. Fast, and accurate measurements on an easy-to-read display with time display and adjustable in Fahrenheit or Celsius readings. Battery operated (AA batteries not included) station and thermometer indicates when battery power is weak.