The LabNet Radiation Monitor sold by Pasco scientific can be adapted for use with the ULI. The plug on sensor is an RJ-11 plug, but the pin assignment on that plug is not correct for a Vernier interface. Pasco sells an adapter that switches the pin assignment allowing the G/M detector to plug into the ULI.
Pasco also sells an adapter (Pasco part number CI-6522) that ends in a quarter inch stereo plug. The Vernier DG-BTD adapter can be added to the Pasco adapter for use with LabPro and other interfaces.
Here are the combination of equipment that work
Labnet G/M Detector with RJ-11 plug, plus LabNet adapter that switches the RJ-11 plugs, plus CBL-RJ11
Labnet G/M Detector with RJ-11 plug, plus LabNet adapter that switches the RJ-11 plugs, plus ROT-BTD
Labnet G/M Detector with RJ-11 plug, plus Pasco LabNet adapter that ends in a stereo plug (CI-6522), plus Vernier DG-BTD.
The newer LabNet G/M Detectors end in a quarter inch stereo plug. They should work with the Vernier DG-BTD, but we did not have one to test.