RSSM 101A2C2RD refers to a product made by Ninigi, a Japanese manufacturer of automated climate control equipment and accessories. The RSSM 101A2C2RD is a multi-range, temperature and humidity controller that is used to control temperature and humidity in clean environments. The device features an intuitive design which allows for a quick and easy setup, as well as real-time monitoring and control of both temperature and humidity. It also has integrated alarm alerts, with both audible and visual cues. The product is certified UL, CUL, and CE, ensuring the highest quality of reliability and performance.