CDN Proaccurate Quick tip Digital Pocket Thermometer on a rope. It features self calibrating with magnifying lens display. It has unique pocket style with protective sheath and made of premium stainless steel. Waterproof, automatically turns off after 10 minutes. Temperature Range -40 to 350F & (-40 to 175C). Waterproof Quick tip Rapid Response. Data Hold locks reading on Display. Automatically turns off after 10 minutes.