Ambient Weather WS-PF11 Wireless Pool and Spa Thermometer with Remote Sensor

Floating pool and spa thermometer with LCD display
Three channel selectable switch
Line of sight wireless transmission (in open air): 300 feet under ideal conditions, 100 feet under most conditions.
Frequency: 433 MHz
Update Rate: 10 seconds on the remote, 60 seconds on the display console.
Time and Date
Indoor Temperature
Power Consumption:
Display console : 2 x AAA 1.5V Alkaline batteries
Remote sensor : 2 x AA 1.5V Alkaline batteries
Battery life: Minimum 12 months for base station
Minimum 12 months for remote thermometer sensor (use lithium batteries in cold water climates)
Dimensions:
Display Console Frame Dimensions (LxWxH): 4.5 x 3.0 x 0.75 in
LCD Dimensions (LxW): 2.5 x 2.0"
Pool Float Thermometer transmitter (WS-PFT120) Dimensions (LxWxH): 5.5" x 3.5" x 3.5"