2023 Spring Super Sale


Mouse over to zoom in

KF-909 LCD Display Air Quality Detector CO2 Carbon Monoxide TVOC HCHO Temperature Humidity Monitor

KF-909 LCD Display Air Quality Detector CO2 Carbon Monoxide TVOC HCHO Temperature Humidity Monitor

Price on the app only:

Already have TOMTOP APP

Scan the product's code to buy directly!

Note: Please update TOMTOP App to the latest version.


Download freely and enjoy extra offers!

Ship From:
  • China Warehouse
Please select a warehouse
Usually will be shipped in business days hours
The request failed! Please try again.
Sorry, it seems that there are no available shipping methods for your location.Please contact us for further assistance.


Ship to

United States
Stock in: china


Please select a color

For each user order no more 5 item(s)

Special discount has ended

Please note each user for only 1 item(s)

Preorder Add To Cart Out of Stock

Arrival Notice

if the goods arrival in 90 days,we will inform you by email!


Arrival Notice

Notification Subscription Success!

if the goods arrival in 90 days,we will inform you by email!

Notification Subscription Failed!

Error appeared,Please try again later!

Arrival Notice

Buyer Protection

  • Full Refund If you don't receive your order
  • Full or Partial Refund , If the item is not as described Learn More >
This new air quality detector combines multiple functions. In addition to detecting Carbonic Oxide, CO2, TVOC, and HCHO, it can also display the date and time, and it also has air pollution alarm function. It can meet your different needs, come and try it, it will not let you down.

Adopt large LCD display screen, you can see the data at a glance, give you a better using experience.
Multiple detecting functions: This device can detect CO2, Carbonic Oxide, TVOC, HCHO, temperature and humidity, let you know the air condition of your home at any time.
The unit of temperature can switch between ℃ and ℉, you can switch to familiar units to use.
It can be widely used in indoor homes, maternal and child rooms, living room, sports and fitness places, business offices, etc.
The four-level pollution level division function, four different colors correspond to different pollution levels, allowing you to more accurately understand the current air conditions.

Material: ABS
Current: 5V 1A
Battery: 1 * lithium battery, 1000mAh (included)
Error: ±15%
Allow: 30%
Package size: 130 * 80 *30mm / 5.1 * 3.1 * 1.2in
Package weight: 260g / 9.2ounce

Packing list:
1 * Air Quality Detector


Post a new topic

Please note that TOMTOP Forums are a community for all communicating and getting help each other. There will be some enthusiastic friends participate in your discussions. Of course TOMTOP customer service (with tomtop customer service icon) response is guaranteed ,which is the same way you contact us at http://www.tomtop.com/contacts

open this forum in full page
Customer Reviews

There are no customer reviews yet.

  • 5 stars
  • 4 stars
  • 3 stars
  • 2 stars
  • 1 stars

Share your thoughts with other customers and get Tomtop Points, the first 5 reviews get DOUBLE Tomtop Points!

Write a Customer Review
Be the first to review this item

Top Sellers More>

Please activate your account first. We will resend the activation email to help you complete your registration.

Recently Viewed


TOMTOP use cookies to give you the best shopping experience. If you continue to use our services or create a new account, we will assume that you agree to our  Privacy Policy.

Tell us which product you want to Social Saving

Click the refresh verification code