Highlights Plastic case material Frequency: 433 M Hz Operation range: 90m Receiver with 2.8" LCD display Can display indoor temperature & outdoor pool temperature Temperature range: -40 to 60 degrees Celsius (water) / 0 to 50 degrees Celsius (indoor) Degrees Celsius/ Degrees Fahrenheit selectable Functions: time clock / calendar / alarm clock 12/24h mode selectable 3 receiving channels Receiver uses 2 AAA batteries Transmitter with 1.3" LCD display Transmitter uses 2 AA batteries Specification Shipping Weight (Kg):0.3652 Dimension (CM):17.1 x 12.9 x 9.8 Package Contents 1 x Pool Thermometer Sensor;1 x Pool Thermometer Receiver.