Oregon Scientific RMR383HGA-BK In/Outdoor Thermometer with Self-Setting Atomic Clock

Monitors the indoor and outdoor temperature from up to three remote locations displays indoor humidity and automatically sets itself to the US Atomic Clock signal. Features: Temperature readings from up to three remote locations Indoor Humidity - Outdoor humidity optional with purchase of new wireless temperature and humidity sensor Automatically sets itself to the U.S. Atomic Clock & adjusts for Daylight Saving Time Temperature & humidity trend indicators Heat Index and Comfort Level indicators High/Low Temp & Humidity Alarm Ice Alert Clock & calendar in English, French, German, Italian and Spanish Crescendo alarm with snooze function Wireless sensor has up to 100-foot transmission using 433MHz frequency Moon phase Outdoor temperature range from -22F to 140F