The 3-2841-1 is a conductivity electrode cable with a 1.0 cell constant, a 316SS electrode, and dual 3/4" NPT connections, compatible with the 9900 transmitter, manufactured by SIGNET SCIENTIFIC. This cable is designed for easy installation and secure connections. With its durable construction and precise cell constant, it ensures accurate and reliable conductivity measurements. Perfect for industrial and scientific applications, the 3-2841-1 conductivity electrode cable is a valuable accessory for the 9900 transmitter.