Q4C Series 4 Sensor Digital Controller w/ Relay Board (4 x SPDT, 10 A)

Description

The Q4C is a multi-channel controller display and alarm unit that utilizes digital communications to interface with a maximum of four remote digital QEL transmitter/sensors. These are used to measure a wide variety of toxic gases such as CO, NO2, NH3, H2 S, SO2, Refrigerants, and Combustibles. The RS-485 communication is connected via a 4-wire multidrop daisy chain configuration to reduce the overall installation costs of the system.