When choosing a kit, we recommend basing it on you home's first floor square footage. Here are our kit options and the recommended home sizes.1000 Sq ft (1 Command + 1 Sense): Great for apartments and condos.1500 Sq ft (1 Command + 2 Senses) This is the most common kit. Great for average size homes or larger apartments.2000 Sq ft (1 Command + 3 Senses): Best for larger homes. This should cover the first floor of your home. If you prefer more coverage, simply add a Hex Sense to your system.