Features:
Weather forecasting function with 3 weather icons and weather tendency indicator
Wireless outdoor temperature (°F or °C)
Monitors indoor temperature (°F or °C)
Monitors indoor humidity (%RH)
MIN/MAX value of temperature display with time and date of recording
MIN/MAX value of humidity display
Barometric tendency arrow
Atomic time and date with manual setting
Automatically updates for Daylight Saving Time (on/off option)
Wall hanging or free standing
Detachable stand included
Can receive up to 3 sensors

Specifications:

Indoor humidity range: 1% to 99%
Wireless outdoor temperature range: -39.8°F to +139.8°F
Indoor temperature range: 14.1°F to 139.8 °F
Transmission range: Up to 330 feet
Transmission frequency: 915 MHz
Swiss precision sensor

Power Requirements:
Receiver: 2 "AA"Alkaline batteries
Wireless sensor: 2 "AA" Alkaline batteries