To confirm that your Go Direct SpectroVis Plus is eligible for this update, please check that all of the following are true:

1. It is a Go Direct SpectroVis Plus (order code GDX-SVISPL).
Older models such as SpectroVis (order code SVIS) and SpectroVis Plus (order code SVIS-PL) cannot be updated.

2. The serial number is lower than 6340.
Only units with serial numbers lower than 6340 need the update. The serial number is located on the top label (see Figure 1).

3. The unit hasn't already been updated.
A small silver or yellow dot on the label located on the bottom of the unit (see Figure 2) indicates that the update has already been performed and there is no need to send in the unit.