---
product_id: 656491585
title: "CO2 Monitor Carbon Dioxide Detector for Home, 3 Adjustable Volume for Alerts & 3 Adjustable Backlight, Photoacoustic Sensor for Temperature Humidity & Indoor Air Quality Monitor"
brand: "u unni"
price: "€ 85.20"
currency: EUR
in_stock: true
reviews_count: 8
category: "U Unni"
url: https://www.desertcart.com.cy/products/656491585-co2-monitor-carbon-dioxide-detector-for-home-3-adjustable-volume
store_origin: CY
region: Cyprus
---

# 3-level adjustable backlight Real-time CO2 & air data 3-level adjustable alarm volume CO2 Monitor Carbon Dioxide Detector for Home, 3 Adjustable Volume for Alerts & 3 Adjustable Backlight, Photoacoustic Sensor for Temperature Humidity & Indoor Air Quality Monitor

**Brand:** u unni
**Price:** € 85.20
**Availability:** ✅ In Stock

## Summary

> 🌬️ Breathe smarter, live sharper — your air quality guardian awaits!

## Quick Answers

- **What is this?** CO2 Monitor Carbon Dioxide Detector for Home, 3 Adjustable Volume for Alerts & 3 Adjustable Backlight, Photoacoustic Sensor for Temperature Humidity & Indoor Air Quality Monitor by u unni
- **How much does it cost?** € 85.20 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.cy](https://www.desertcart.com.cy/products/656491585-co2-monitor-carbon-dioxide-detector-for-home-3-adjustable-volume)

## Best For

- u unni enthusiasts

## Why This Product

- Trusted u unni brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Customizable Alerts:** Set 3 distinct alarm volumes to never miss critical air quality changes
- • **Precision Swiss Sensor:** Photoacoustic tech delivers ±5% accuracy for CO2 levels up to 5000 PPM
- • **Seamless Power Options:** USB powered with battery backup ensures uninterrupted monitoring anywhere
- • **Ambient Comfort Monitor:** Track temperature (14.2°F–122°F) & humidity (20%–95%) alongside CO2
- • **Actionable Air Quality Insights:** Visual & audible alerts prompt timely ventilation to boost health & focus

## Overview

The U UNNI CO2 Monitor is a high-precision indoor air quality device featuring a Swiss-made photoacoustic sensor that tracks carbon dioxide levels (400–5000 PPM), temperature, and humidity in real time. With customizable 3-level alarm volumes and backlight settings, USB power with battery backup, and clear visual alerts, it empowers professionals to optimize their home or office environment for better health, productivity, and comfort.

## Description

U UNNI CO2 Monitor Carbon Dioxide Detector for Home, 3 Adjustable Volume for Alerts & 3 Adjustable Backlight, Photoacoustic Sensor for Temperature Humidity & Indoor Air Quality Monitor: desertcart.com: Industrial & Scientific

Review: I didn't know the air in my office was so bad... - I've been trying to improve the air quality in my office and wanted to have the details available at a glance, so chose this monitor. The monitor has a very clear display; I'm able to read it clearly across the room without effort. I was impressed by the quality of the manual, as often the devices have very poor instructions. The device is powered by USB and includes the charger with a good length of cord and built in stand, though I might switch to the wall mount. Overall, I was pretty impressed with the features and surprised with how high the CO2 levels were in my office. The built in alarm for the different levels was helpful, and I can easily set the thresholds through the buttons on the front; instructions were very clear. Looks like I need to get a vent fan to improve the quality; wouldn't have known before. The sensor appears to be very sensitive and updates frequently, so the realtime analysis gives me confidence of the results. Overall, very good functionality at a great price.
Review: Accurate and reliable air quality monitor - Well made, well laid out and accurate monitor. Easy to setup with alarms that you set. Indoor temperature and humidity are nice added features. The unit monitors CO2 levels which is carbon dioxide in the air, TVOC which is Total Volatile Organic Compounds in the air, PM2.5 fine particular matter in the Air, PM10 Inhalable Airborne Particles and PM1Ultra Fine Particulate Matter. Easy to read from across the room. The instructions all well written and easy to understand. Highly recommended.

## Features

- CARBON DIOXIDE DETECTOR for HOME, SWITCH °C/°F – Great item for any home to monitor the weather and air quality! Real-time CO2 value, temperature and humidity, CO2 history chart, CO2 Concentration range, 3 Adjustable Volume for Alarm Setting & 3 Adjustable Backlight, Max/Min Data, Low battery indicator.
- HIGH-PRECISION SENSIRION CO2 SENSOR – Equipped with Swiss-made Photoacoustic Sensor provides precise and reliable readings, which gives you peace of mind about the air in your home. CO2 detection range：400～5000PPM,accuracy：+/- 5% + 50PPM. Temperature range: 14.2°F ~ 122°F, Humidity range: 20% to 95 %.
- IMPROVE VENTILATION – Very useful for high concentration of poor air quality and cooking indoors and it will indicate to open a window/door to refresh the area to get the levels lower. CO2 monitor for Home, RV, Grow Tents.
- INDOOR AIR QUALITY MONITOR - Detect rise and decrease in carbon dioxide level, perfect for anyone wanting to monitor air quality! Elevated CO2 can cause symptoms like headaches, drowsiness, allergies and difficulty concentrating, to keep an eye on air quality at home or work!
- USB POWERED OPTION & BATTERY BACKUP & ADJUSTABLE BACKLIGHT – It is plugged in which allow the multi brightness display to stay on all the time, if you prefer. Either set it on tabletops, or mount it on the wall. 3 x AAA Battery(not included) for Backup & outdoor manual calibration.
- calibration process:Place the device in a standard calibration environment of 400PPM,Press and hold the ALERT button, and power on the device or install the battery,The device will sound "Bi-BI" and the screen will display the "CAL" character and keep blinking,After three minutes of calibration, the "PASS" character will be displayed. Power off and power on the device.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Alarm | Audible |
| Brand | U UNNI |
| Color | White |
| Power Source | USB POWERED OPTION & BATTERY BACKUP |
| Sensor Type | Photoacoustic Sensor |
| Style | Classic |

## Product Details

- **Brand:** U UNNI
- **Style:** Classic
- **Power Source:** USB POWERED OPTION & BATTERY BACKUP
- **Color:** White
- **Alarm:** Audible
- **Sensor Type:** Photoacoustic Sensor
- **Number of Items:** 1
- **Manufacturer:** U UNNI

## Images

![CO2 Monitor Carbon Dioxide Detector for Home, 3 Adjustable Volume for Alerts & 3 Adjustable Backlight, Photoacoustic Sensor for Temperature Humidity & Indoor Air Quality Monitor - Image 1](https://m.media-amazon.com/images/I/61yfJZsxe5L.jpg)

## Available Options

This product comes in different **Color** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ I didn't know the air in my office was so bad...
*by D***M on January 6, 2026*

I've been trying to improve the air quality in my office and wanted to have the details available at a glance, so chose this monitor. The monitor has a very clear display; I'm able to read it clearly across the room without effort. I was impressed by the quality of the manual, as often the devices have very poor instructions. The device is powered by USB and includes the charger with a good length of cord and built in stand, though I might switch to the wall mount. Overall, I was pretty impressed with the features and surprised with how high the CO2 levels were in my office. The built in alarm for the different levels was helpful, and I can easily set the thresholds through the buttons on the front; instructions were very clear. Looks like I need to get a vent fan to improve the quality; wouldn't have known before. The sensor appears to be very sensitive and updates frequently, so the realtime analysis gives me confidence of the results. Overall, very good functionality at a great price.

### ⭐⭐⭐⭐⭐ Accurate and reliable air quality monitor
*by D***O on January 1, 2026*

Well made, well laid out and accurate monitor. Easy to setup with alarms that you set. Indoor temperature and humidity are nice added features. The unit monitors CO2 levels which is carbon dioxide in the air, TVOC which is Total Volatile Organic Compounds in the air, PM2.5 fine particular matter in the Air, PM10 Inhalable Airborne Particles and PM1Ultra Fine Particulate Matter. Easy to read from across the room. The instructions all well written and easy to understand. Highly recommended.

### ⭐⭐⭐⭐⭐ Accurate, Reliable, and Ideal for Nursery Air Quality
*by R***N on November 24, 2025*

I’ve been really impressed with this CO₂ Monitor Carbon Dioxide Detector. The readings are accurate and refresh quickly, which gives me a lot of peace of mind—especially with a new baby at home. The built-in temperature and humidity monitor is a huge bonus. It helps me keep the nursery at a comfortable and healthy level throughout the day, and the indoor air quality indicator makes it easy to catch issues before they become a problem. I also appreciate the 3 adjustable alert volumes and the 3-level backlight. They make the device flexible for both daytime use and quiet nighttime monitoring without disturbing the baby. Overall, this monitor is easy to use, reliable, and packed with practical features. Highly recommend it for anyone who wants to maintain a safe and healthy environment at home, especially for newborns.

## Frequently Bought Together

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*Product available on Desertcart Cyprus*
*Store origin: CY*
*Last updated: 2026-02-04*