SKU: SRWQ100-DO103-8901 Dissolved Oxygen Sensor, 4-20mA, RS485, M39x1.5, 5m cable The L-com SRWQ100-DO104 series is a water quality sensor used to measure the amount of gaseous dissolved oxygen in water. A critical measure that has wide ranging impacts on aquatic life as well as machine life. It also makes drinking water taste better... $1,470.00 $1,396.50 Add to Cart The item has been added Compare