LJTick-Divider - 2 Channel Voltage Divider Signal Conditioner
The LJTick-RelayDriver (LJTRD) allows 2 digital I/O lines on a U3, U6, or UE9 to each control a relay or other moderate load.
the 4-pin design plugs into the standard DIO/DIO/GND/VS screw terminal block found on LabJacks U3, U6, and UE9. Each DIO controls a switch to ground (i.e. open-collector) that can hold off up to 50 volts and can sink up to 200 mA.