Amazon.com has a LaCrosse Technology WS-9013U Wireless Temperature Station for $16.95. Free Shipping on orders over $25.
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- Sensitive wireless temperature station from industry leader La Crosse Technology n
- Station’s LCD monitor conveys indoor and outdoor temperature conditions and time of day; wall-mount or stand alone display n
- Included TX6U sensor transmits information to base from distances up to 80 feet; time updated by radio signal n
- Separate purchase of 4 AA alkaline batteries is required; 2 additional sensors may be added n
- The base monitor measures 5-2/3 by 3-1/4 by 1-1/4 inches, the sensor 5 by 1-3/5 by 4/5 inches; covered under a limited 1-year warranty