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Wireless WiFi AJ-833 Stand Alone Carbon monoxide Detector


2 in stock

  • Test/Silence button
  • LCD display, Human Voice alarm
  • Temperature and humidity detection
  • Low battery notification
  • EN50291 standard
  • Private model
  • WIFI/ZIGBEE/Interconnect optional

5,870.00 15,000.00

2 in stock

Carbon monoxide detector

AJ-833 Carbon monoxide detector (Upgraded version)

*LCD display available, A digital Screen continuously displays the level of carbon monoxide

*Clear English Voice alarm, visible status indications LEDS(Power. normal, fault ) and LCD digital display ( Low battery, fault, and alarm, temperature, and humidity )

* Button for test and mute: Test the alarm electronics and mute the unit during an alarm.

* Loud 85dB at 3m * 10 years battery life

*WIFI Interconnected Smart version

There are different carbon monoxide detectors with different functions for you to choose from. Click for more details.

SKU: AJ-833W Categories: , , Tag:
Weight 0.210 kg


1. Operation voltage: 6V lithium iron battery (4pcs1.5V battery)

2 Battery : replaceable

3 Voice alarm, Temperature and humidity detection

4. Standby working current: <30uA

5. Wake up cycle: 12 seconds

6. Low voltage threshold: 5.6V

7 CO: Alarm density:

50ppm alarms do not activate within 120 minutes

50-100ppm,alarms within 80 minutes

100-300ppm,alarm with 30 minutes

300ppm, an alarm within 50seconds

8. Sound intensity: ≥85dB / 3m

9.product size : Φ120*650*35mm


11.Executive standard: EN50291-1: 2018

WIFI version:

Wifi working standard: 2.4G Hz 802.11b / g /N

App: TUYA Smart /Smart Life

Battery Not Included 

Warranty Condition

Does this product checked before shipping them to me?

Yes., of course.We have a professional Quality Control team. They will check carefully for each item we received from factory to avoid sending defective goods to our customers.

If a item is found defective in our Technical QC  team , it will be returned to the factory. Please don’t worry about receiving a defective item because we are committed to being a trustworthy

Products Guaranteed

Factories that supply Sonoff are strictly evaluated by us, and we provide you an even better reassurance of consistent  high quality thanks to our Sonoff Technical QC team. We double-check the contents of all orders carefully before dispatch to our customers a. Sonoff will maintain all product serial number and products ID for stop delicacy.

Lead time

Processing time 1-2 business days normally: During this period, we do strict quality-control tests and get the items carefully packed.

Delivery time

Delivery time 3-8 business days normally in India.

 Who will be delivered the product to me

You order  will dispatch from your nearest local authorized dealer by ShipRocket/Delhivery.com.

What should I do if my items arrived damaged?

When using shipping services, we want the delivery to be as fast as possible. At the same time, we expect from the courier company to handle our shipments with great care throughout their journey. Packages reach several depots and go through multiple hands until the driver delivers them to their recipients. Even though we might assume it is the courier’s fault for the damaged delivery of the parcel, several other situations explain it is not always the case.

If you order got damaged or lost during transits so  Rarely, rough handling by the courier can lead to physical damage to your goods, e.g. broken screen. In this condition, Apply for Insurance claim terms & conditions applicable.

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