About Us

For over 40 years, Rees Scientific has been the undisputed leader in environmental monitoring and compliance.

With the largest regional service team and fully qualified customer success partners nearby, your critical equipment is consistently monitored and maintained.

Reduce downtime and ensure compliance—so you can focus on what matters most to your facility.

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Our Story

Rees Scientific specializes in protecting your valuable assets.

Since 1982, Rees Scientific has been the industry standard for continuous automated temperature monitoring. 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.

Today we continue to lead the field, taking input from our clients and learning from environmental challenges. We ensure that critical equipment and devices are monitored and maintained. We’ve invested a considerable amount of time and resources on our quality iniatiative. We believe this investment will help provide a higher level products and services. As an 9ISO/IEC 9001:2015 certified & ISO/IEC 17025:2017 accredited company, Rees Scientific is constantly upgrading policies, procedures and protocols to comply with the most stringent regulations.

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Our systems are fully validated and Title 21 CFR part 11 compliant. Our validation protocols are regarded as the industries most extensive and are designed to meet today's strict standards set by the FDA, CDC, WHO, CxP, AABB, Joint Commission , USP <797>, USP <800>, ASHP, CAP, ad other regulatory bodies. Automated reporting, alarm notification, audit trails, and complete data encryption are just a few of the standard features to help you meet your regulatory requirements. Our goal is to be the quality provider of systems, services, and solutions.

We take pride in our regional service and support capabilities. We employ regionalized sales and service engineers who are fully qualified to solve the most difficult of technical problems. Our fleet of stocked service vehicles are ready to be dispatched to handle all on-site service. To our knowledge, no other monitoring providers come close to the 100 plus dedicated factory employed, factory trained field technicians we have located regionally. Regardless of your location, our service and 24/7/365 technical support teams can ensure needs are responded to promptly.

Our headquarters are in Trenton NJ with over 125 employees. Our project managers and technical support teams are experienced and dedicated to our customers. Together, they ensure that your system is well maintained, up-to-date and in proper working order. Our North American operations are complemented by our presence in Europe. Native Europeans are strategically located throughout the continent offering sales and service to all of our foreign customers.

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At Rees, our mission is to guide our customers through every step of the Environmental Monitoring System journey. From initial design to ongoing support, we ensure that our clients have the tools, expertise, and dedication they need to maintain the highest standards of compliance and reliability. We're not just a service provider; we're your partner in safeguarding the integrity of your critical environments.

Michael Mothersbaugh

President

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Our Leadership Team

Meet the leaders behind the team of experts who work tirelessly to provide 24/7/65 unparalleled environmental monitoring excellence, support and compliance.

Meet Our Team

Careers

Explore our career opportunities and take the first step towards a rewarding journey with Rees.

Learn More