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: Bluetooth Compatible, Battery Back-Up, Smart Home Enabled Tech Compatibility: Apple Ios, Android Use: Indoor Measurements: 3.1 Length/Inches, 1.8 Height/Inches, 2.2 Width/Inches Country of Origin: Imported