Check the listing for details. Sper Scientific Digital Anemometer/Thermometer Wind Speed Device Kit + Manual. Condition: Used. Listed at 65.00 USD. Item Description/SpecificationsTested, and it works fine! I put a new 9V battery in it to test; the old one had bulged at the bottom end. Battery IS NOT INCLUDED with this purchase! It needs one of those single rectangular 9V's with both contacts on one end. This consists of a kit with the handheld unit + a "vane probe" (i.e. a handheld fan that air blows through). The computing unit can measure both wind speed and ambient temperature. It turns on with a battery in it -- this is the FULL EXTENT OF THE TESTING I PERFORMED!This unit is stamped for the Department of Agriculture. I am unsure if that's the U.S. department or the State of Illinois' department of the same. Payment & Shipping policies Item will be shipped via USPS Ground Advantage by default.Item will generally be shipped within 1 business day of full payment being cleared. Ordering on a weekend (or over holidays) may result in delays. USPS observes federal United States holidays, such as Columbus Day.Return policiesItem may be returned within 30 days for a full refund. Buyer pays for return shipping, unless item is defective.