Out of Stock

WIFI Smart Door/Window Sensor

(26 customer reviews)

£7.99 excl. VAT

Enhanced Surveillance: Elevate your home’s security with the WIFI door sensor, designed to offer uninterrupted vigilance over your space. Ideal for doors, windows, cabinets, and drawers, this sensor becomes your eyes and ears, alerting you about their status, be it open or closed. With the SM300 sensor in place, maintaining a watchful eye over your property from any corner of the globe is a cinch.

Intuitive Voice Control: The SM300 sensor effortlessly integrates with leading smart assistants like Amazon Alexa and Google Home. This lets you harness the power of voice commands to easily ascertain the state of any monitored entry point. For instance, you can simply ask, “Alexa, is my front door locked?” and be instantly informed.

Stand-alone Efficiency: Embrace the simplicity of a hub-free environment. Designed to be self-sufficient, the WIFI door sensor requires nothing more than a stable WIFI connection to function at its peak.

Minimalist Design with Maximum Impact: Steer clear of the clutter of cables. Powered by a robust built-in rechargeable battery, the WIFI Door Sensor promises both longevity and a neat appearance. Its installation is straightforward, thanks to the provided 3M adhesive stickers, making it a hassle-free addition to your space.

Strategize Your Security: Whether it’s your home, office, storage shed, or garage, this sensor ensures critical spots remain under close watch. Note that it’s optimized for indoor use, ensuring the most sensitive areas of your space are safeguarded.

Unified Monitoring Experience: The spirit of collaboration is alive and well with the WIFI door sensor. Using the Smart Life app, you can share access to the sensor with family members, ensuring everyone stays in the loop about the security of shared spaces.

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Elevate your home security with the WIFI Door/Window Sensor, a versatile device suitable for doors, windows, cat flaps, wardrobes, drawers, and any movable object. Its primary function is to detect separation or connection between the two parts of the kit, sending real-time open/close status updates straight to your device.

Battery Alerts: Never be caught off guard! In the event of a low battery, this sensor promptly sends an alert, ensuring continuous monitoring. What’s more, the battery is rechargeable, offering both convenience and sustainability.

Extended Range with Energy Efficiency: Despite its energy-saving design, this WIFI module boasts an impressive transmission range. Signals can be sent up to 30m away to the wireless router, ensuring expansive coverage without compromising on energy consumption.

Amazon Alexa
Google Home

1. Download Smart Life application from App Store or Google Play
2. Open Smart Life app, register and log in
3. Insert 2 x AA batteries and follow on-screen instructions in the app
4. Select Door from the list of available new devices to add the door sensor
5. Attach the sensor using the adhesive stickers to a door/window with the gap of ≤1 cm between the parts

Wireless WiFi Windows/Door Security Sensor
Users manual

Additional information

Weight 55 g

Battery: AAA1.5V x 2
Protocol: IEEE 802.11b/g/n Wireless Range: 40m
Operating Temperature: 5℃~ 40℃
Operating Humidity: 20% ~ 85%
Storage Temperature: 0℃ ~60℃
Storage Humidity: 0% ~ 90%
Standby time: 6 – 10 months
Wireless Type: 2.4GHz

26 reviews for WIFI Smart Door/Window Sensor

Based on 26 reviews

Customer Images

Image #1 from Anonymous
Image #1 from Anonymous


Does exactly what it says on the tin! I used my own smaller magnet as what was included is too big for my setup. Very happy!

Image #1 from Anonymous
1-10 of 26 reviews
  1. Spent 3 hours trying to set this up through smart life, to no avail.Then tried Tuya as some else suggested. Done in a minute or two! Then ever since has been erratic and has now stopped working! Will send back.

  2. F?r meine zwecke ungeeignet da der Sensor erhebliche Probleme im Iobroker aufweist, von daher geht er zur?ck.Da gibts von Medion bessere alternativen.

  3. These are excellent little things. I connect them to the Tuya app, and I get a notification if the door is opened. They’re great for peace of mind, both as an intruder alarm, and for making sure that you actually did close the front door!

  4. Funktioniert perfekt und wird ohne Probleme vom Echo Plus als Kontaktsensor erkannt. Der Kontaktsensor ist etwa 15 Meter vom Echo Plus entfernt und die Verbindung ist zuverl?ssig.Ich nutze den Sensor um meine Tado Heizung im Schlafzimmer auszuschalten wenn das Fenster ge?ffnet wird und wieder in den Automatik Modus zu schalten wenn ich das Fenster schlie?e, alles ?ber eine Routine mit IFTTT und Alexa.

  5. does its job perfectly, many thanks

  6. Top. Einbindung in Smart Life ?ber das Gateway ohne Probleme. Reagiert sofort und schaltet sofort das Licht ein, wenn die T?r ge?ffnet wird. Kein Vergleich zu WLAN Sensoren. Funktioniert mit KKmoon Zigbee Gateway. Auch ?ber Amazon gekauft

  7. Great bit of kit but can’t turn them off manually. You can also use these as smart buttons, you can press the button on the front and programe it to do what you like eg. Turn off all lights and plugs.

  8. Sensor geht sehr leicht einzurichten. Funktioniert sehr zuverl?ssig. Steuern Ger?te von anderen Herstellern m?glich.Habe jetzt die M?glichkeit gefunden, die Fensterauf Funktion, des FRITZ!DECT 301, zu steuern. Jetzt regelt endlich die Heizung runter, wenn das Fenster gekippt wurde, oder vergessen wurde zu es schlie?en.

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