TYR1123 Features: * Thermometer * With remote sensor, hygrometer and atomic clock * Blue backlight atomic clock and alarm * Monitors in/out temprature and humidity * Minimum/maximum recall 123 simple forecast with indicators * Low battery indicator * Transmits up to 100" * Requires 4AAA batteries (not included) Includes: * Includes °F/°C switch Dimensions: * Overall dimensions: 10.8" H x 10.8" W x 1.9" D