Ambient Weather WS-1171 Wireless Advanced Weather Station with Temperature, Dew Point, Barometer and Humidity

bFeatures:/bbr Wireless outdoor and indoor humidity (%RH)br Outdoor humidity calibrationbr Wireless outdoor and indoor temperature (°F or °C)br Records min. and max temperature and humidity with Date and Timebr Barometric pressure 24-hour history graph (in Hg or hPa)br Forecast Icon Based on Changing Barometric Pressurebr Radio controlled time and date (WWVB Dcf)br Automatically updates for daylight saving time (on / off option)br 12 or 24-hour time displaybr Perpetual calendarbr Time alarm with snoozebr Includes one wireless remote sensorbr LED backlight (temporary)br Wall hanging or free standingbr Low battery indicatorbr Synchronized instant reception (SIR)br bSpecifications:/bbr Wireless outdoor humidity range: 1% to 99% RH (+/-5% accuracy) with calibrationbr Indoor humidity range: 1% to 99% RH (+/-5% accuracy)br Wireless outdoor temperature range: -40.0°F to + 149°F (+/- 2°F accuracy)br Indoor temperature range: +32°F to + 140°F (+/- 2°F accuracy)br Transmission range: up to 330 feet (line of sight)br Transmission frequency: 433MHzbr bPower Requirements:/bbr Receiver: 3 "AA" batteries (not included)br Wireless sensor: 2 "AAA" batteries (not included). Lithium recommend for long life and cold weather (see below)br Dimension (LxWxH):br Receiver: 7.25 x 4 x 1.25 inbr Sensor: 3.5 x 2.75 x 1.25 inbr bIncluded:/bbr User Manualbr Updated User Manual available online