The High Tech Pet Medium Extra-Tall Electronic Fully Automatic Patio Pet Door for Sliding Glass Doors features a directional sensing system that opens the door when your pet approaches. Dual range controls let you set both inside and outside activation distances separately and a 4-way access control lets you select from in-only, out-only, full-access or closed-and-locked options.

The High Tech Pet Medium Extra-Tall Electronic Fully Automatic Patio Pet Door for Sliding Glass Doors features a directional sensing system that opens the door when your pet approaches. Dual range controls let you set both inside and outside activation distances separately and a 4-way access control lets you select from in-only, out-only, full-access or closed-and-locked options.