Yes, it is possible to connect two SensorDAQs to a computer at the same time.

The standard VIs that come with the SensorDAQ are set up for using just one SensorDAQ. In order to create a LabVIEW program that controls two SensorDAQs, you must use the DAQmx low-level drivers.

The best way to get started is to use one of our VIs, called “DAQmx_TwoSensorDAQs.vi”, which is included in our set of SensorDAQ examples. You can find this VI in your LabVIEWexamples directory at:
LabVIEW 20xxexamplesVernierSensorDAQ LabVIEW ExamplesSDAQ Analog SensorsAnalog Advanced Low Level

A second option would be to use two different interfaces, such as a SensorDAQ and a LabQuest Mini or LabQuest Stream. For more information about this option, see Can I use a SensorDAQ and a LabQuest at the same time in LabVIEW?