The SK401 is a NIST-traceable, water-resistant temperature recorder. It is housed in a secure Velox PBT NEMA 4X case and can record temperatures from -20Â° to 120Â°F in a seven-day recording time range. Used for industrial and food applications, including HACCP, the recorder is small enough so that it can monitor the inside of freezers and coolers. It is also suitable for outdoor use, but not in direct sunlight, the company warns. Dickson Co., attn: Customer Service, 930 S. Westwood Ave., Addison, IL 60101-4997; 800-323-2448 or 630-543-3747; 800-676-0498 or 630-543-0498 (fax); firstname.lastname@example.org (e-mail); www.dicksonweb.com (Web site).