Nest Connect. Range extender for the Nest Secure alarm system. With Nest Connect, you can place Nest Guard and Nest Detects farther away from each other. It’s recommended for larger homes. Features: Smart Home Enabled, Battery Back-Up, Bluetooth Compatible Tech Compatibility: Android, Apple Ios Use: Indoor Measurements: 2.2 Width/Inches, 3.1 Length/Inches, 1.8 Height/Inches Country of Origin: Imported