La Crosse Technology S77925-INT Wireless Color Weather Station

[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 | BAROMETRIC PRESSURE] 24hr historical graph adjusted to fluctuating pressure providing you accurate readings | [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; Optional Add-On compatible sensors (sold separately)