La Crosse Technology WS-8115U-S-INT Atomic Digital Wall Clock with Indoor and Outdoor Temperature

Wirelessly monitors indoor/outdoor temperatures
Atomic Clock automatically & adjusts for daylight Saving time
12- & 24-hour Clock. Remote transmission of outdoor temperature to temperature station by 915 MHz
Wall hanging or free standing; Perpetual calendar & Time zone setting
Requires 2 AA & 2 AAA batteries
Accurate and self-setting atomic time and date with automatic daylight saving time
Indoor and outdoor temperature; 260 Feet wireless range; Low battery indicator. Included TX38U-IT-N Wireless Outdoor Temperature Sensor