As well as letting you know when someone arrives at your home, a smart home security system can also alert you when they don't. If you're away from home and need to be sure that your teenager, or a contractor, or dog-walker, or any other visitor is arriving at the house when they should, No-Show alerts are a smart way to do it.

Instead of getting an alert every time your visitors let themselves in with their unique user codes, you'll only get an alert when they don't. This minimizes the number of alerts you get while still keeping you informed.

Here's how to set up a No-Show alert for an existing user.

Note: You'll need to create a user code for the person first.

1. Getting Started

Log into your account and go to the Notifications tab. Click the New Notification button.

In the first (Standard) tab of the pop-up, select No-Show Alert.

2. Create Your Alert

Name your alert in the first line, select the user from the drop-down list, then specify the time frame for the alert.

In our example, we're creating an alert for a dog walker who should arrive at the house every weekday lunchtime. We've checked every weekday on the Days bar, and specified a start time of 11:00 am and an end time of 2:00 pm. If the dog walker doesn't arrive between these times on a weekday, we'll get a No-Show alert.

Specify your days and time frame, then scroll down, add yourself as a recipient, and click Save.

3. Manage or Change Your Alert

Your new alert will now appear under the Notifications tab. You can turn it off, edit or delete it anytime from this tab.

Now that you've set up a No-Show alert, you'll never need to wonder whether family members or visitors let themselves in again.