SKU: SRWQ100-YL105-9001 Residual Chlorine Sensor, 4-20mA, RS485, M39x1.5, 5m cable The L-com SRWQ100-YL105 series is a water quality sensor used to measure the residual chlorine content of water. A critical measure that indicates a water supply was chlorinated sufficiently in an effort to destroy pathogens in it. This not only applies... $1,940.00 $1,843.00 Add to Cart The item has been added Compare