Note: This document addresses intermittent Bluetooth connections. If you are unable to connect at all by Bluetooth see:
     Why can't my device find Go Direct SpectroVis Plus Spectrophotometer when I try to connect via Bluetooth?

If your Go Direct® SpectroVis® Plus Spectrophotometer (GDX-SVISPL) successfully connects to your device by Bluetooth for some period of time, but then drops the connection, there are several possible reasons. Please call our Chemistry Technical Support team at 1-888-VERNIER (1-888-837-6437) or email to troubleshoot.