description 4-in-1 anemometer convenient 4-in-1 anemometer measures air velocity, air flow, air temperature, and type k temperature. built-in low friction ball bearing mini vane wheel for high accuracy. the type k temperature probe function measures surface temperature up to 2372°f (1300°). features large dual lcd with back lighting, data hold, and min/max function. california proposition 65 warning. features large lcd displays air velocity and air temperature, air flow, or type k temperature reading replaceable low friction ball bearing mini vane wheel to retain high accuracy backlit display to view in dimly lit areas data hold and min/max functions specifications accepts battery sizes aaa acme tools brand name extech acme tools part number an510 additional contents wrist strap, general purpose type k bead wire probe, and three aaa batteries assembled weight (lbs) 1 battery life varies with usage california proposition 65 warning required yes country of origin taiwan globaltradeitemnumber (gtin) 00793950455111 internal supplier part # 510 internet product code (ipc) 3f95331166f manufacturer warranty 1 year operating temperature range 32 to 122°f (0 to 50°c) package contents wrist strap, general purpose type k bead wire probe, and three aaa batteries package weight 1 package weight (lbs) 1 storage temperature 32 to 122°f (0 to 50°c) temperature range 32 to 122°f (0 to 50°c) upc 793950455111