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Secure Door Sensor:
Phone Alerts & Sensor


Receive an alert on your smartphone for any unexpected movement from your door or gate

The Secure Door Sensor can send you a message when it detects door movement. No Wifi required. The Secure Door Sensor uses the latest IoT technology to send an alert & allow for long lasting battery life.


NO WiFi or power connection required. Perfect for garages, sheds, containers, holiday homes, caravans, machinery & gates.

What Makes The Secure Door Sensor The Market Leader?

STS Door Tracker - image only
  • Wireless

    No WiFi or 3G/4G connection needed. Subscription to the IoT network included in the STS package.

  • Long Lasting battery

    Battery life of up to 1 year* for when it's really needed. *Battery life based on 2000 door movements.

  • Simple Setup

    Download the app, enter the serial number and place the device on the back of your door. Less than 10min setup time.

  • Smartphone App

    Available on Apple and Android. The free app can manage all your STS sensors. Receive alerts to monitor unexpected activity of your door or gate all from your smartphone.

  • Subtle Design

    Small size and made from very strong material. The device can be installed without being noticed.

  • Latest Technology

    Our devices uses the latest "Internet of Things" (IoT) technology. 

Gate Sensor
Theft deterrent to stop access into your property

The Secure Gate Sensor allows you to be connected to your property to monitor access. Any unexpected gate movement will send an alert straight to your smartphone.

Set up is easy as entering the serial number into the app and attaching to the back of your gate.

The Secure Gate Sensor does not require power or WiFi access - meaning that it is perfect for your remote gate.

Stop unauthorised access to your property before any damage or theft to your home.

Power Box Door Sensor
Secure a power box in minutes

The Secure Door Sensor is a great solution for power box security. The credit card sized security system is ideal for discreet installation.

When the device detects unexpected movement from your power box door you will be sent an alert to your smartphone.

Installation is as easy as syncing the device to your phone and attaching to the door of your power box. No wifi required.

Door Sensor For Machinery
Robust Industrial Strength

The Secure Door Sensor has been developed with industrial UV stabilised weather resistant casing (IP66 rating) with operating temperature from -10° to 55° Celsius.

Perfect for a security sensor on outdoor machinery.

Door Sensor For Home
Small, discreet & easy to setup

The Secure Door Sensor allows you to be connected to your home, caravan or holiday home to monitor access.  Any unexpected door movement will send an alert straight to your smartphone.

Setup is easy as pairing the Secure Door Sensor with your smart device and attaching the sensor to your door.

Use the Secure Door Sensor as a security deterrent, or to discreetly notify you when someone has entered your home, caravan or holiday home.

Door Sensor For Your Shed
No power or wifi required

The Secure Door Sensor allows you to be connected to your shed to monitor access. Any unexpected door movement will send an alert straight to your smartphone.

Set up is easy as entering the serial number into the app and attaching to the back of your shed door.

The Secure Door Sensor does not require power or WiFi access - meaning that it is perfect for your remote shed or garage.

Looking for a more robust shed alarm system? See our Remote Alarm System here.

App Features

  • Monitor Assets

    STS Secure app makes it easy to secure places and assets with alerts of any unexpected movement direct your smartphone.

  • Multiple Users

    Setup notifications to be shared with multiple users. This allows your security to be monitored by more than one person to help surveillance.

  • 10 Minute Setup

    Use the STS Secure app to pair with your device. Then attach the device to your wall. 10 minute setup time! 

  • Add Monitoring Times

    if you're away form your asset from 6pm to 7am. Make this your time period for when you receive alerts for unexpected movement.

  • Instant Alerts

    App notifications display instantly to allow you to investigate why there is unexpected movement at your place or near your assets.

  • Free App

    Free smartphone app. For Apple devices the app requires iOS 10.0 or later. For Android the app requires Android 5.0 and up.

  • Bluetooth Sync

    Easily pair your device to your phone with bluetooth. Setup only takes 10 minutes from pairing to your phone to attaching on your wall.

  • Pause Alerts

    Easily use the app to pause the alerts. I.e. pause alerts for 1 hour and alerts will auto-turn-on after the hour is complete.


Secure Door Sensor


What do you want to attach a door sensor to:


FAQ's

Simply turn the door sensor device on, pair it with your mobile phone using our free app and attach it to the back of your door. In less than 10 minutes you have a security sensor that will alert your phone when it sensors any unexpected movement.

Our door sensor sends alerts to your phone using the IoT network. This network has the same coverage as the 3G/4G network.

Because of the low power used on the IoT network, the door sensor can stay charged for up to one year (or 2000 door movements) on 2xAAA batteries. You will receive an alert on your smartphone when the battery is getting low.

Yes. The app allows you to review door access times to find any unexpected behaviour.

Yes, the app is free. For Apple devices the app requires iOS 10.0 or higher and compatible with iPhone and iPad. For Android the app requires Android 5.0 and up. Download today by searching 'STS Secure' in your app store to test if the app can install on your phone.

Yes, add a network group into the app and each user in the group will receive permission to recieve alerts.

Yes. We have developed the door sensor with industrial UV stabilised weather resistant casing (IP66 rating). Operating temperature from -10° to 55° Celsius. Perfect for a security sensor on outdoor gates, sheds, containers, machinery, power boxes and garages that cannot pick up wifi.

2 x AAA batteries provide +1 year (or 2000 door movements) worth of battery life. The door sensor will send warning notifications to your smartphone when the batteries are running low. Easily screw off the back casing to replace batteries.