In order to be able to use the YES Plus LGA in difficult to reach areas, a handheld sampling probe is available. The probe is attached to a 25.4 cm / 10 inch wand which is attached to 76.2 cm / 30 inch of tubing that fits onto the nozzle of the YES Plus LGA and allows you to reach into and sample areas that are difficult to access. Note: The sampling probe for the YESAIR is very similar to the sampling probe for the YES Plus LGA. The YES Plus LGA sampling probe has a plastic connector. Each sampling probe is specific to its device (the probe for the YES AIR will not fit on the YES Plus LGA and vice versa).