
Deter intruders and alert neighbours
The Bell Box's loud 105dB outdoor siren and flashing red LED light are designed to stop intruders in their tracks and let neighbours know there's a potential break-in at your home.

Sound the alarm
Visible day and night
The siren’s size, shape and bright visual light serve as a deterrent even when the alarm isn’t triggered. The dimensions of the Bell Box are 22 x 22 x 2.7 centimetres.
Long battery life
The siren’s replaceable battery lasts up to 12 months*. Your SimpliSafe security system will let you know when it needs changing. Ships with the 4 lithium batteries needed.
*Varies based on settings, placement, and usage
Customisable siren volume setting
With your Keypad and App, you can adjust the siren volume level of your Bell Box.
Protected by professionals, 24/7*
Designed to work with the SimpliSafe security system for around-the-clock whole home protection. If your alarm is triggered, the system alerts the 24/7 professional monitoring centre, ensuring fast emergency response.
*Professional monitoring and emergency dispatch is available when you sign up for the Pro Premium monitoring plan.

Simple setup
No wiring needed. No professional installer needed. Follow the simple steps to connect the Bell Box to your SimpliSafe system and install it in a highly visible location from the street.

The Bell Box is designed to work with our SimpliSafe system and requires a Base Station (sold separately) to function. It connects to your home Wi-Fi network (2.4 GHz) and the SimpliSafe App. Be sure to update the Base Station when you see the gear icon on the Keypad; or by going into the Keypad in ‘System Settings’ and selecting 'Check for Updates’.
Yes. SimpliSafe is engineered to outsmart attempts to disable your system, with battery and cellular backup that keep you connected to monitoring (if you have a professional monitoring plan) even if an intruder cuts your power or takes down your Wi-Fi. As the Bell Box is battery powered, the red LED light will continue to flash and the siren will still sound if a sensor is triggered.
When a sensor is triggered, such as an Entry Sensor or a Glassbreak Sensor, the Bell Box siren will sound and the red LED lights will begin to flash. This siren will alert neighbours and passersby that there is an incident at your home. If you have a monitoring plan, it will also help police identify the home where there’s an incident. The outdoorsiren will not sound if a SimpliSafe Water Sensor, Temperature Sensor or Smoke Detector are triggered.