Signet 2610 Process Optical Dissolved Oxygen Sensor is a rugged, reliable sensor designed to deliver accurate dissolved oxygen (DO) data across a wide measuring range while reducing maintenance costs. It features the latest optical technology for DO measurement. The Gen II DO sensor comes with three standard outputs: • Digital (S3L) to communicate with Signet 9900, 9950 and 8900 instruments • 4 to 20 mA, factory default ranged 0.2 to 20 ppm • ModBus RS485 The Gen II system consists of the following: • Sensor body with removable nose cone • 10 m (32.8 ft) cable with stripped and tinned ends • Optical DO sensing cap • Titanium Temperature Sensor Description RDO is a registered trademark of In-Situ® Inc., Fort Collins, CO USA.