... , easy to use, water proof,shock proof Apresys USB Temperature Recorder Model 179-UTTechnical parameters:Temperature Range -40°F ~185°F, -40°C ... D25, D50, D99Readings capacity28,000 ReadingsProduct Instruction U disk temperature recorder made by U.S. APRESYS, employing the most advanced high ... daily necessities, freight containers by sea/air, etc. Apresys USB Temperature Recorder 179-UT datalogger