1. Calendar: January 1, 2000 to 31st.20991.Calendar 2. Alarm clock with snooze function 3. Water temperature range: - 40 to 60 degrees 4. Indoor temperature range: 0 to 50 degrees 5.433MHZ wirelessly receives the water temperature of three channels 6. Record of maximum and minimum indoor temperature and water temperature Line of sight wireless transmission line (open air): 100 feet, perfect condition: 300 feet. Frequency: 433 MHz Update rate: on the remote control, displayed on the console in 90 seconds and 10 seconds. Measurement index The following table provides specifications for measurement parameters. Measurement range precision resolution Room temperature - 40 to 140 F 2 F 0.1 F Water temperature - 58 to 140 F 2 F 0.1 F power waste Display console: 2 AAA 1.5V alkaline batteries Remote control sensor: 2 x AA 1.5V alkaline battery Battery life: at least 12 months (using lithium battery, the minimum is 12 months for remote thermometer sensor of base station in cold water climate) Colour:Photo Color Material:Plastic Package Contents: 1 X Floating Pool Thermometer kit(batteries not included) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.