Rees has been the undisputed leader in compliance when it comes to continuous environmental monitoring systems for over 40 years. Our systems are designed to keep a close eye on the temperature of any storage, ranging from +1300 to -196 °C. From stability chambers, refrigerators, freezers, LN2 Tanks, incubators, animal holding rooms, ultra-low freezers, cold rooms, to clean rooms, our systems monitor all critical equipment and parameters such as temperature, humidity, differential pressure, lighting control, carbon dioxide, oxygen, light, and air changes per hour.



With our automated continuous temperature monitoring system, we offer the most diverse range of methods for delivering data in the industry. You can choose from wired, Zigbee wireless, WiFi, or even a hybrid of all, and we make it easy to install on your network or on the ReesCloud. Our team of experienced sales and engineering professionals can help you find the right system that best fits your needs and requirements.



At Rees , we understand the importance of adhering to today's highly regulated environments. As an ISO/IEC 9001:2015 certified & ISO/IEC 17025:2017 accredited Company, we are constantly updating our policies, procedures, and protocols to comply with the most stringent regulations. We provide a full range of validation, calibration, and training services that can be tailored to meet each client's specific requirements.



We have regionalized sales and service engineers who are fully qualified to handle even the most challenging technical problems, armed with well-stocked vans containing all critical components. No matter where you are located, our live 24/7/365 technical support team ensures that requests are responded to promptly and closed out correctly.



As the market leader in environmental monitoring, we can help you meet the toughest standards set by FDA, CDC, WHO, GxP, AABB, Joint Commission, USP <797>, USP <800>, ASHP, CAP, and other regulatory bodies. We continue to lead the field, taking cues from our clients and their environmental challenges. Our goal remains firmly fixed on ensuring that your critical equipment and devices are monitored and maintained to set a standard every second of every day, without exception and without fail. So choose Rees Scientific for your environmental monitoring needs, and experience unparalleled excellence and compliance like never before.