Product DescriptionTamper-resistant, back-to-back mount for two UniFi Bullet, Dome, or Turret cameras that supports flat surface installation and attachment to 1 1/2" NPS threaded conduit. Supports surface, pole and pendant mounting Includes 1 1/2" NPS threaded conduit Compatibility: UVC-G4-BULLET , UVC-G4-Bullet-3 , UVC-AI-Dome-W , UVC-AI-DSLR , UVC-G5-Pro , UVC-AI-Pro , UVC-AI-Pro-White , UVC-G5-Bullet , UVC-G5-Bullet-3 , UVC-G5-Turret-Ultra , UVC-G5-Turret-Ultra-B , UVC-G4-PRO , UVC-G4-PRO-3 , UVC-AI-Turret-B , UVC-AI-Turret-W , UVC-G5-Dome-Ultra , UVC-G5-Dome-Ultra-B , UVC-AI-Bullet