Ambient Weather WS-1173-2-KIT Dual Zone Wireless Advanced Weather Station

Features:
Wireless outdoor and indoor humidity (%RH)
Wireless outdoor and indoor temperature (°F or °C)
Records min. and max temperature and humidity with Date and Time
Barometric pressure 24-hour history graph (in Hg or hPa)
Forecast Icon Based on Changing Barometric Pressure
Radio controlled time and date (WWVB & Dcf)
Automatically updates for daylight saving time (on / off option)
12 or 24-hour time display
Perpetual calendar
Time alarm with snooze
Sunrise and Sunset based on longitude and latitude
Moohphase based on calendar date
Includes one wireless remote sensor
LED backlight (temporary)
Wall hanging or free standing
Low battery indicator
Synchronized instant reception (SIR)
Specifications:
Wireless outdoor humidity range: 1% to 99% RH (+/-5% accuracy)
Wireless outdoor temperature range: -40.0°F to + 149°F (+/- 2°F accuracy)
Indoor temperature range: +32°F to + 140°F (+/- 2°F accuracy)
Transmission range: up to 300 feet open air (ideal conditions), 100 feet for most applications
Transmission frequency: 433MHz
Power Requirements:
Receiver: 3 "AA" batteries (not included)
Wireless sensor: 2 "AAA" batteries (not included). Lithium recommend for long life and cold weather (see below)
Dimension (LxWxH):
Receiver: 7.25 x 4 x 1.25 in
Sensor: 3.5 x 2.75 x 1.25 in