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SM11W Wifi Smoke Alarm

(2 customer reviews)


SKU: SM11W Category:

Mobile Phone Push Notifications

Once you have paired the wifi smoke alarm to your mobile (via Tuya app), whenever the smoke alarm is triggered, you will be notified on your mobile. If you have someone at home, you can call them to check for fire threats.

Tuya Push Notification

Modern & Elegant Design

Say goodbye to old school heat alarm design. HD11R is sleeker and slimmer than other heat alarms and it fits perfectly into your house decor, regardless of the theme.


It’s side profile is only slightly bigger than our Singapore One Dollar Coin!

SM11R4 Side

10 Years of Continuous Power

Powered by lithium battery, our smoke alarm provides 10 years of continuous smoke detection, every day of the year. No more having to set reminders to replace batteries.

No BatteryChange

Carefully Calibrated Photoelectric Sensor

Not all photoelectric smoke alarms have the same level of sensitivity. Our smoke alarms are subjected to different household environment and smoke density to get the best balance of sensitivity, in order to ensure that we only alert you when there is a real fire threat. Of course, there’s no guarantee that there’ll not be no false alarms. When installed in less-than-ideal locations, the chances of false alarm increases even in a carefully calibrated photoelectric sensor.

Photoelectric Chamber

Anti Dust Design

We also eliminate false alarms with a revolutionary anti-dust design around the photoelectric sensor chamber, blocking out dust particles which may otherwise trigger an alarm. Similar to the sensor, some fine particles may still get past the anti dust design and makes its way into the smoke sensing chamber, which may eventually result in false alarms.

No Ceiling Too High To Reach

There should not be a need to have to use a ladder / stool whenever you want to test the smoke alarm. Testing is made easy with our big test button (marked orange), which is the entire surface of the smoke alarm. Doesn’t matter if it’s HDB @ 2.6m, or Condominium @ 3 – 3.6m, or even Landed with ceiling height upwards of 3.6m. All you need is just an extendable pole.

Test Silence Button


Hassle Free Installation

No mess, no hassle with double-sided industrial grade 3M PE foam tape. Simply peel off the protective layer and stick our smoke alarm up on the ceiling. Of course, if you want to go the traditional way, that is fine as well with our provided wall anchor plugs and screws.

Double Sided Tape & Screws

Weight 190 g
Dimensions 125 × 125 × 35 mm

EN 14604:2005/AC:2008

Power Supply

DC3V Lithium (CR14505)

Battery Life

10 Years


>85dB within 3m


0.09 – 0.17 dB/m


Up to 95%RH

Operating Temperature

-10°C – 50°C

Installation Method

Ceiling Mounted


ABS fireproof material



2 reviews for SM11W Wifi Smoke Alarm

  1. Xy (verified owner)

    Chat service is good. Test sound is loud.

  2. Chee Seng (verified owner)

    Quick response to customer’s enquiry.

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About Smart Life (1)

A step by step guide on how to pair your phone to the SM11W wifi smoke alarm via Smart Life app.

This guide describes the steps to pair your wifi smoke alarm (SM11W) with your mobile phone via Smart Life App. Please follow them closely.

You will need the following:

  1. to be at your installation location with your WiFi enabled to do the pairing
  2. the wifi smoke alarm SM11W
  3. your mobile phone (Android or Apple)
  4. Smart Life App
  5. patience!

We recommend you to read through the guide first to get a brief understanding before commencing the pairing. Please pay attention to the parts with this icon and bold in red.

We also have a video for your reference. You can scroll slightly down to refer to the text guide version.

Step-By-Step Guide

  1. Download & install the app SMART LIFE onto your mobile phone. Follow the instructions in the app to setup your account / profile.
  2. Ensure your mobile phone is connected to your home WiFi and with Bluetooth enabled / turned on.
  3. Press & hold the surface of smoke alarm (also the test/silence button) for about 10 seconds. You should hear a loud beep and see a single red LED flash. If you didn’t hear / see, repeat this step.
  4. Press the test/silence button 4 times quickly to enter pairing. You should see the red LED blinking continuously (the LED will turn to flashing green after a while).
  5. Return to app SMART LIFE and select Home.
  6. Click Tuya Add to add a new device.
  7. Select Add Device.
  8. Go to category Sensors.
  9. Select Sensor (Wi-Fi) under Sensor category,
  10. Your Wi-Fi SSID (Wi-Fi name) should auto show up. Enter your Wi-Fi password and click Next.
    Tuya Wifi
    • Please note that you must connect to the 2.4GHz Wi-Fi network or the pairing will fail.
    • Most modern routers will have both 5GHz and 2.4GHz Wi-Fi networks. It is highly recommended to have different Wi-Fi names for both networks so that you can accurately choose the 2.4GHz Wi-Fi network name. Please consult your router manual on how to give different Wi-Fi names.
    • If your router auto combines the 5GHz and 2,4GHz Wi-Fi networks together as a single Wi-Fi name, you may not be to pair successfully.
    • This is a limitation of today’s Wi-Fi technologies with SMART LIFE and not a limitation of our smoke detector.
  11. You should see the LED blinking green quickly by now.
  12. Select Blink Quickly.
    Tuya Pairing
  13. Click Confirm the indicator is blinking rapidly.
    Tuya Pairing
  14. Pairing initiates. Be patient. It may take more than ONE minute for the pairing.
    SM11W Adding Into Tuya
  15. You will see the following screen if pairing is successful.
    SM11W Added Into Tuya
  16. You will be returned to app home screen. You should now see your paired wifi smoke alarm in the home screen.
    SM11W Tuya Home

If Pairing Fails

  • repeat step 4 to step 15
  • ensure the Wi-Fi network you are using to do pairing is on your 2.4GHz Wi-Fi network
Category: About Smart Life

Smoke Detectors (3)

This FAQ serves to guide you on what to do in event of false alarms in smoke detectors.

A false alarm is an event where a smoke detector is triggered but there’s no smoke around. False alarm is usually caused by some fine particles entering the smoke sensing chamber. As these particles move around in the chamber, they affect the photoelectric behaviour and may trigger the smoke detector.

This is the reason why we do not recommend installing smoke detectors in dusty, greasy, high humidity or windy areas. You can refer to this post to find out where to avoid installing smoke detectors. If you have smoke detectors in any of these areas, you may have to consider relocating that smoke detector.

If the smoke detector isn’t in any of these areas, then it may be just sheer luck that some fine particles entered the smoke sensing chamber of the smoke detector. In this case, perform a maintenance on the smoke detector. You can refer to this post on how to how a simple cleaning of the smoke detector.

There are 2 ways of maintenance:

  1. Vacuum cleaner
  2. Compressed air duster

Compressed air duster (#2) is the preferred option but if you do not have a canister of compressed air duster, the vacuum cleaner option is a good alternative.

If after doing maintenance with vacuum cleaner and false alarms persist, then you may have to consider purchasing a compressed air duster. You can find them from Lazada or Shopee.

If after doing maintenance with compressed air duster and false alarms persist, you may have to consider relocating that smoke detector even though it may not be installed in any of abovementioned dusty, greasy, high humidity or windy areas.

Category: Smoke Detectors

Certification of SM11R4 / SM11W

Product Brochure

Certificate of Constancy of Performance

SCDF accepts multiple certifications for HFAD (home fire alarm devices) other than CoC (certificate of conformity). This model of smoke detector has an international certificate of constancy of performance that’s certified by TUV Rheinland. This is considered as CE marked with certification from approved 3rd Party Notified Bodies.

You can also view the online certificate at this link.

Technical Data Sheet

SCDF FSC Form Completion

This is how one would fill up the SCDF FSC form on HFAD.

  • Certification Category: CE marked with certification from approved 3rd party Notified Bodies
  • Certificate Body: TUV Rheinland
  • Certificate Number: 1008-CPR-MC 69265247 0001
  • Validity Period From: 29/03/2021
  • Validity Period To: Leave it blank
  • Delivery Order Date: Date printed on invoice or day where order is received
click to see bigger image
Category: Smoke Detectors

I still have some questions on smoke detectors.

Check out our extensive Smoke Detectors FAQ here.

I have a question that is not in your FAQ. Can you help me?

Yes, definitely. Simply whatsapp @ 8815 8752 or email to on your question and we would help to address it. You can also read up our Ultimate Smoke Detector Guide as it contains more in-depth information on smoke detectors.

Category: Smoke Detectors

Warranty & Returns (3)

How to do a remote return?

Smoke Detectors

All smoke detector replacements will need to have the original unit returned to us.

  • If it is an on-site replacement, we will collect back the original unit on-site.
  • If it is a remote replacement, you will need to send us back the original unit. See section Remote Return.

Remote Return

  1. In the package that has your replacement units sent to you, you will find the following items as well:
    • Additional courier packaging bag
    • Bubble wrap bag(s)
  2. Once you have installed the replacement units, please pack your existing units, including all accessories into the original packaging boxes that comes with your replacement order.
  3. Put the packaging boxes into the provided bubble wrap bags (1 bag for each box).
  4. Put the packaging boxes into the additional courier packaging bag and seal it.
  5. Whatsapp us @ 88158752 when this is completed.
  6. We will arrange a pickup and email/whatsapp you an airway bill (AWB) within 24hrs.
  7. You have to print out this AWB and slot into the clear pocket of the courier packaging bag. This step needs to be completed before the Registered Date printed on the AWB.
  8. Collection will happen on the Registered Date, between 8am – 11pm.

Should there be any missing items / accessories that are not included in the return, Customer will have to bear the cost of delivering those missing items / accessories back with tracking.

Category: Warranty & Returns

Blaze Guard will conduct an on-site battery replacement if the smoke detector enters LOW BATTERY MODE (refer to instruction manual) within warranty period.

  1. 10 Years Battery Warranty applies only if the condition below is met:
    1. a review/recommendation has been given. Refer to this link for step-by-step guide in giving a review/recommendation.
  2. For avoidance of doubt, if #1.1 is not done, only a 3 years battery warranty applies.
  3. 10 Years Battery Warranty excludes the battery source for the wifi-base of the Wifi Interconnect Smoke Detector.
  4. Warranty period counts from date of purchase.
  5. Blaze Guard will conduct an on-site battery replacement if the smoke detector enters LOW BATTERY MODE (refer to instruction manual) within warranty period.
    1. On-site replacement is only for detectors installed <3m in height. For locations >3m, you will need to arrange handyman services to take down the detectors for us to do battery replacement.
  6. On-site battery replacement request must be liaised with Blaze Guard via email: first.
  7. Original invoice showing date of purchase is required.

Category: Warranty & Returns

Warranty registration is not required.
All items are inspected thoroughly prior to delivery.


  • Warranty registration is not required to qualify for warranty. Simply ensure you keep the email invoice (don’t delete it).
  • All items are inspected thoroughly prior to delivery. Where possible, a picture will be sent to consumer first before delivery.
  • Blaze Guard reserves the right to refuse any 1-1 exchange if the defect is deemed to be caused by consumer, intentionally or unintentionally.

Smoke Alarms

  • 10 years battery warranty (T&C applies)
    In absence of a review/recommendation to our Facebook page, a 3 years battery warranty will apply instead.
  • 10 years product warranty excluding battery
  • 100 days fully refundable trial (T&C applies)
  • 7 days 1-1 exchange for physical defects
    • Includes only the following:
      • Cracks on smoke alarm

Fire Extinguishers

  • 7 days 1-1 exchange for physical defects
    • Includes only the following:
      • Scratch marks on fire extinguisher that are clearly visible from a distance of 30cm
      • Broken safety clip
      • Cracked pressure gauge
  • 1 year 1-1 exchange if pressure gauge falls out of green zone

Category: Warranty & Returns