Before you begin you will need:

  • Your Elertus/Liberty SafElert Sensor and included AA batteries
  • A computer, smartphone or tablet with Wi-Fi capability
  • A flat-head screwdriver
  • Your Wi-Fi network name and password


Install the batteries into your Elertus/SafElert Sensor, and wait for the LED light to turn solid RED.


TIP: A slot on the left side of the Elertus/SafElert Sensor enables you to pry the case open using a flat-head screwdriver.


Press and hold the little, white button on the front of your Elertus/SafElert Sensor until the LED light flashes YELLOW.

TIP: You may need to hold the button down for up to 15 seconds. The LED may blink other colors before it begins flashing YELLOW.


When the LED light on your Elertus/SafElert Sensor is flashing YELLOW it is in a special setup mode. You can connect to it just like you would your home or business Wi-Fi network.

Ensure that Wi-Fi is enabled on your computer, smartphone or tablet, then continue.


Go to the wireless (Wi-Fi) settings of your computer, smartphone or tablet.

Search for available wireless networks and connect to the Wi-Fi network named Elertus.

The Elertus Wi-Fi network cannot provide an internet connection, but will provide access to the Elertus/SafElert setup web page.

TIP: If you are doing the setup on a smartphone, you may need to disable cellular data on your phone for the duration of the setup process.


Open an internet browser on your computer, smartphone or tablet.

TIP: It may show you an error indicating that you do not have an internet connection. This is normal.

In the address bar type: and press Enter or Go.


Your browser will now load a special Elertus or SafElert Setup Web Page depending on your Sensor.

Follow the onscreen instructions to complete your Elertus/SafElert Sensor setup.