CB series is the state-of-the-art temperature controller developed to pursue "easy and user-friendly" temperature control. It provides easy-operating, versatile functions including Self-tuning and stable control with 0.3% measurement accuracy. RKC self-tuning Clear and Easy-to-read Large LED RUN/STOP function Digital Communications RS-485 (Option) Dustproof and waterproof structure IP66(IP65) (Option)