The Walchem WCT610HSSNE-BN controller is now obsolete and is replaced by the Intuition-6 series of controllers. The new series is enhanced, but has similar specs. For reference, here are the specifications of the old model:
Series: WCT600
Relays/Wiring: 100-240 VAC, 2 Powered and 4 Dry Relays, Hardwired
Input Cards: Two Sensor Input Cards
Analog Outputs: No Analog Outputs
Ethernet: Ethernet Card
Sensors: Graphite Contacting Conductivity + Flow Switch Manifold on Panel