La Crosse Technology Wireless Digital Color Weather Station with Alerts, Black, C85845-INT

[DIGITAL COLOR FORECAST] Dynamic forecast icons with trend arrows (*Please allow 7-10 days for barometric calibration); RECORDS HI/LO values for temp & humidity (auto-resets daily) [CURRENT TEMPERATURES & HUMIDITY] Monitor Indoor & Wireless Outdoor Temperatures with humidity levels; CUSTOM set alerts (HI/LO for both temp & humidity); Dew Point & Heat Index views [COMFORT CHARTS] Colorful Comfort level color bars display humidity levels for both Indoor & Outdoor. Range: 10% to 99% RH [ACCURATE TIME] Atomic self-set clock in 12-hr or 24-hr mode and Crescendo time alarm & 10-min snooze; Auto-reset for Daylight Savings time (on/off option) and 7 time zone settings; Complete calendar date [AC POWERED] Constant backlight with Adjustable settings operating with (incl.) 5V power cord; optional back up requires 3 AA alkaline batteries (not included) if you should lose power (POWER-SAVING feature - only illuminates backlight on LCD, when battery operated-only); TX141TH-B (any version) requires (not incl.) 2 AA batteries