SimpliSafe DEFEND Wireless Home Security System

Protect your house, apartment or business with this SimpliSafe Defend home security system. Its wireless capabilities let you remotely monitor your property from a smartphone and receive text alerts when someone enters or exits. This SimpliSafe Defend home security system only detects human heat signatures, so you can keep it armed with pets in the house. Perfect for out of town travel, knowing when the kids get home from school or that the pet sitter has visited as scheduled.


  • Keeps your home or business secure
  • Includes a Keypad, Entry Sensors, Motion Sensors, and a Keychain Remote
  • Control the setup from your smartphone
  • Just download the app and pair it with your Apple iOS or Android device to get started
  • iPhone App
  • Android App
  • SMS text alerts
  • Arm and disarm alerts will tell you when a person you have hired arrives at your home. And when they leave
  • Pet-friendly
  • Motion sensors are designed to detect the specific heat signature of humans, so furry members of your family can enjoy 24/7 home security
  • Digital keypad
  • Allows you to change the settings of your security system
  • Wireless mounting
  • Enables easy installation around your home, including sheds, attics, garages, and cabinets


  • 1 Base Station - Plug it in and it will locate and control all of your sensors, making SimpliSafe the easiest security system in the world to install. It’s also responsible for sending all your alarm signals to the SimpliSafe 24/7 alarm monitoring center. Your Base Station will arrive equipped with the same cellular technology that’s in your cellphone
  • 1 Keypad - Most wireless alarm systems have an Achilles heel, if a burglar smashes the keypad quickly enough, the police don’t get alerted. SimpliSafe took the “brains” out of the Keypad and put them into a separate Base Station, which is hidden somewhere in your home or office building
  • 2 Motion Sensors - Detects motion within 30 feet. The sensor has a “field of vision” of 90 degrees, giving you a full range of coverage when placed in a corner. Dogs and cats under 50lbs won’t trigger the alarm.
  • 6 Entry Sensors - The sensor detects whenever the magnet moves more than two inches away from it, so it knows whenever the door or window open.
  • 1 Keychain Remote - Arm and disarm your alarm with a push of a button. Set your alarm to away after you leave to protect your home. Simply press off to disarm your system as you approach your front door.


  • Max Number Of Sensors Accommodated: 41
  • Remote Monitoring Capabilities: Yes
  • Network Connectivity: CDMA, GSM
  • Power Source: Battery-powered, Plug-in
  • Connectivity:
    • Wireless: Yes
    • Remote Monitoring Capabilities: Yes
    • Network Connectivity: CDMA, GSM
  • Operating System Compatibility: Android, Apple iOS, Mac, Windows, Windows Mobile
  • Color Category: White
  • Color: White
  • Model Number: SS2-DEF2
  • Brand: SimpliSafe
  • UPC: 815017029544
  • 900-1800 MHz Cellular GSM Connection (6 seconds faster than a landline)
  • Temperature-rated: for 45°-115° Fahrenheit
  • Base Station input: 100-240V ~ 50/60Hz output: 7.5V


  • 2x Motion Sensors
  • 6x Entry Sensors
  • 1x Base Station
  • 1x Key Pad
  • 1x Master Keychain

Estimated Delivery Date

Monday, August 17th - Monday, August 24th