Our SC2124 scannercontroller is a microprocessor based controller that has 24 channels of Analog input, offers Class A, B or C alarms and shutdowns and 4 relay outputs for controls. CSA approved. The SC-2000 series microprocessor-based scanners continuously samples temperature, pressure, and other analog signals. The large multi-informational display indicates both the value of each channel and any alarm conditions. Model SC-2124 has a large 4x20 character display and accepts up to 24 0-5 V inputs and has 8 onboard resistors for up to 8 4-20 mA inputs. The keypad lets you access and configure J or K type thermocouples as well as RTD's and linear inputs.