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Review of the X-Sense Wi-Fi Smoke Detector

The X-Sense XS01-WT smoke alarm

The X-Sense XS01-WT smoke alarm

As the smoke detector in my dining room had reached the end of its lifespan, I began to check around for a replacement.

My budget was moderate, but if possible, I wanted a wi-fi-capable smoke detector. Sure, I know a smoke alarm received over the phone while I’m out of town brings nothing but distress. But at least I could call a neighbor, asking them to peek in a window to check for a fire.

In the end, I picked up an X-Sense XS01-WT.



This smoke detector has a diameter of 3 inches and extends 1.9 inches from the ceiling. It weighs 4.6 ounces.

The XS01-WT includes a short base attached to the ceiling by either a pair of screws or a sturdy circular piece of double-sided tape. The main unit is secured in position by pressing it against its base and twisting.

A replaceable CR123A lithium battery provides power.

The unit’s photoelectric sensor ensures a fast response to smoke via an 85db alarm and a notification that is pushed to the associated smartphone.

A button located on the side of the smoke alarm activates a self-test and sends a message to my smartphone confirming a working wi-fi connection.


  • Manufacturer: X-Sense
  • Name: Smoke alarm
  • Model: XS01-WT
  • Weight: 130 grams (4.6 ounces)
  • Height: 4.8 centimeters (1.9 inches)
  • Diameter: 7.6 centimeters (3 inches)
  • Power supply: 3V CR123A lithium battery
  • Operating lifespan: 10 years
  • Battery lifespan: 1 year
  • Type: Photoelectric sensor
  • Coverage area: 20 – 40 sq meters (215 -430 sq ft)
  • Alarm level: 85db at 3 meters (10 feet)
  • Silence duration: About 9 minutes
  • Wi-Fi capable: Yes (2.4G)
  • Phone application: Tuya Smart or Smart Life
  • Included hardware: Double-sided tape, 2 screws, 2 wall anchors, pin, and user guide
The battery should be replaced once per year

The battery should be replaced once per year

The Application

This application allows the reception of test notifications and real-time smoke alarms. It is also used to check the smoke detector’s battery level and provide information regarding faults.

When smoke is detected, the application can be used to silence the audio alarm temporarily. This ability would prove helpful if the alarm proves to be a result of my poor cooking skills rather than an actual emergency. After nine minutes of silence, the audio alarm would again become active if smoke remained present.

Wi-Fi Setup

The first step is downloading and installing either the Tuya Smart or the Smart Life application. Once this is complete, install the smoke detector’s included battery. A light on the side of the device should begin to flash rapidly.

Using the instructions provided by the application and user’s guide, add the XS01-WT to your network. Your wi-fi password is required to complete this procedure.

The Mount

This smoke detector includes a short base attached to the ceiling with either two screws or a sturdy circular piece of double-sided tape. The main unit is secured in position by pressing it against its base and twisting.

My dining room ceiling is stippled, providing an uneven surface unsuitable for the use of double-sided tape. In this case, I reused an older screw hole and employed the mount as a template for drilling the second. I then pounded in an anchor and attached the base.

Because the XS01-WT is smaller in diameter than my original smoke detector, I will eventually be required to fill in one of the original screw holes with Polyfilla and brush on a film of white paint.



The Test

Once the XS01-WT was set up and mounted, I lit a cigarette and puffed a cloud of smoke directly at the device. As it detected the smoke, the alarm began to blare. A few seconds later, I received an alert on my phone, notifying me of the danger. I opened the application and selected Silence. At this point, the audio alarm turned off.

Later that day, I pressed the test button on my smoke detector several times. In every case, a confirming notification was delivered to my smartphone.

Self test initiated

Self test initiated

Self test initiated

Self test initiated

Overall Impression

It was reasonably easy to set up the XS01-WT to communicate via wi-fi. It also proved to be a simple task to mount the smoke detector to my ceiling.

Since this device has been integrated into my wi-fi system, smoke alarms are automatically sent to my phone. I especially appreciate the ability to silence an alarm using the application. This option saves me the trouble of climbing up onto a chair and pushing the detector’s reset button.

If you are searching for an effective wi-fi-capable smoke detector, the X-sense XS01-WT is worth a close look.

© 2022 Walter Shillington