Yes. We have tested this with the Green Diffraction Laser (GDL-DAK) and it effectively activates the photogate’s photo-transistor.

A Class 2 laser is generally considered safe as the blink reflex will limit exposure to short time periods. Direct exposure (by direct or reflected light) on the eye by a beam of laser light should always be avoided with any laser, no matter how low the power.

Vernier Photogate (VPG-BTD) Troubleshooting and FAQs
Go Direct Photogate Troubleshooting and FAQs