Can I connect my 3rd party device to an ADInstruments PowerLab unit?

The suitability of a device to interface with an ADInstruments PowerLab unit is dependent on several factors. 
The flow diagram here will walk you through the steps to determine if your device is able to interface with a PowerLab unit. Note that custom cables are supplied at a cost, and a wiring diagram of the output (if no BNC) will need to be provided to ADInstruments in order to create the custom cable.