In general, older sensors that connected directly to ULIs and Serial Boxes can be used with new interfaces using an adapter that costs $5. As long as the sensors were stored properly, they will generally continue to work long past their 5 year warranty. However, because the sensors were built before we invented the “Auto-ID” feature, you will need to take a few simple steps to manually set them up in the data-collection software. See the section below for specific instructions based on the software you are using.

Using Logger Pro Software
Select Set Up Sensors>Show All Interfaces from the Experiment menu.


This will open a dialog that displays the interface connected to the computer. Click the port the sensor is connected to and select the appropriate sensor.

The interface should recognize the sensor.

Using LabQuest App
These instructions apply all LabQuest versions (xcreenshots are from LabQuest 2).
Go to the Meter view by tapping the Meter icon in the upper-left corner of the screen.


Tap Sensor and choose Setup Sensor from the drop-down list.
Select the port the sensor is connected to and select the sensor from the drop-down list.
Click OK.

The interface should recognize the sensor.

Note that once you choose the sensor, you may need to alter the data-collection properties.

For a complete guide of which adapters are needed for which sensors (including pictures), check out our online adapter wizard at:

What Is the Difference Between Auto-ID Sensors, Non-Auto-ID Sensors, and Smart Sensors?
Why doesn't my LabQuest unit recognize auto-ID sensors?