Since 1982, Rees Scientific has been the most compliant continuous environmental monitoring system in the industry. Our system can monitor the temperature of any cold storage (refrigerators, freezers, ultra-low freezers) from +100 to -196 °C. We monitor equipment and parameters such as temperature, humidity, light, differential pressure & more. Our FDA compliant monitoring system helps protect critical assets, equipment and environments. Meet compliance for GxP, CLIA, 21CFR part 11 & more.