About This Product Mercury 3 (Mk3) Case Controller for EEV Solid State Relay for control of EEV pulse valve Outputs for fans, anti-sweats, lights, defrost On-board IO: 1 SSR, 4 relays, 6 temp inputs, 2 digital inputs, 1 analog input (4-20mA or 0-10V) Built-in LED display, panel-mount 100-240 Vac Documents Specification Sheet Attributes TYPE Mercury & Intuitive Mercury Case Controllers