---
product_id: 656491587
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: "VT35325"
currency: VUV
in_stock: true
reviews_count: 5
category: "U Unni"
url: https://www.desertcart.vu/products/656491587-co2-monitor-carbon-dioxide-detector-for-home-3-adjustable-volume
store_origin: VU
region: Vanuatu
---

# CO2 range 400–5000 PPM ±5% 3-level adjustable alarm volume Temp range 14.2°F–122°F 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:** VT35325
**Availability:** ✅ In Stock

## Summary

> 🌬️ Breathe smarter, live better — 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?** VT35325 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/656491587-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:** Three adjustable alarm volumes and backlight settings keep you informed without disruption.
- • **Flexible Power Options:** USB powered with battery backup ensures continuous monitoring wherever you need it.
- • **Precision Swiss Sensor:** Photoacoustic tech delivers lab-grade CO2 accuracy for your peace of mind.
- • **Comprehensive Air Metrics:** Monitors CO2, temperature, and humidity simultaneously for a full indoor air quality snapshot.
- • **Smart Ventilation Reminder:** Real-time CO2 spikes prompt you to refresh your space, boosting health and focus.

## Overview

The CO2 Monitor by U UNNI is a high-precision indoor air quality detector featuring a Swiss-made photoacoustic sensor that measures carbon dioxide levels (400–5000 PPM with ±5% accuracy), temperature (14.2°F–122°F), and humidity (20%–95%). It offers 3 adjustable alarm volumes and backlight settings, USB power with battery backup, and real-time alerts to optimize ventilation and maintain a healthy indoor environment.

## Description

indoor air quality monitor co2 sensor home for grow tent

Review: Simple and work great
Review: Surprisingly accurate. I have an industrial monitoring system installed and bought this for outside of my grow area and to see how accurate these better priced readers are. The Non-Dispersive Infrared sensors ensure this little machine can read accurate levels. This is all you need for relatively accurate readings. It is tracking within 40 PPM of my more comprehensive sensor which really surprised me.

## 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.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D8PGPRVL |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 447,805 in DIY & Tools ( See Top 100 in DIY & Tools ) 118 in CO2 Detectors |
| Colour | White |
| Customer Reviews | 4.5 4.5 out of 5 stars (284) |
| Date First Available | 14 Sept. 2024 |
| Included Components | 1*CO2 Monitor, 1*USB Cable, Manual |
| Item Weight | 141 g |
| Item model number | UN0601S |
| Manufacturer | U UNNI |
| Package Dimensions | 13.79 x 10.21 x 3.71 cm; 141 g |
| Part Number | UN0601S |
| Power Source | USB POWERED OPTION & BATTERY BACKUP |
| Style | Classic |

## Product Details

- **Alarm:** Audible
- **Brand:** U UNNI
- **Colour:** White
- **Manufacturer:** U UNNI
- **Number of items:** 1
- **Power source:** USB POWERED OPTION & BATTERY BACKUP
- **Sensor type:** Photoacoustic Sensor
- **Style:** Classic

## 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/41V8jwPgYGL.jpg)
![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 2](https://m.media-amazon.com/images/I/41zKEgh+1oL.jpg)
![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 3](https://m.media-amazon.com/images/I/513onn6PzcL.jpg)
![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 4](https://m.media-amazon.com/images/I/514o61xAIrL.jpg)
![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 5](https://m.media-amazon.com/images/I/51lz8hpSSnL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by F***G on 5 January 2026*

Simple and work great

### ⭐⭐⭐⭐⭐ Review
*by S***R on 20 February 2025*

Surprisingly accurate. I have an industrial monitoring system installed and bought this for outside of my grow area and to see how accurate these better priced readers are. The Non-Dispersive Infrared sensors ensure this little machine can read accurate levels. This is all you need for relatively accurate readings. It is tracking within 40 PPM of my more comprehensive sensor which really surprised me.

### ⭐⭐⭐⭐⭐ Review
*by K***I on 14 April 2025*

Ich habe das CO₂-Messgerät gekauft, um die Luftqualität in meinem Homeoffice Büro und Wohnzimmer besser im Blick zu behalten – und ich muss sagen: Ich bin wirklich positiv überrascht! Die Kombination aus CO₂-Messung, Temperatur- und Luftfeuchtigkeitsanzeige ist super praktisch. Auf diese Weise kann ich auch im Winter mein Raumklima überwachen und Schimmelbildung vorbeugen. Besonders gut gefällt mir das historische Diagramm, mit dem ich die Veränderungen im Laufe des Tages nachvollziehen kann. So sehe ich zum Beispiel genau, wann ich lüften sollte – was sich tatsächlich auf Konzentration und Wohlbefinden auswirkt. Die Messgenauigkeit ist überzeugend und lässt sich per Kalibrierung sogar noch feinjustieren. Auch das Alarm-System mit 5 Konzentrationsstufen ist hilfreich, wenn auch zum Glück bisher selten ausgelöst. Ich finde es super, dass man die Lautstärke des Alarms selbst einstellen kann – keine nervigen Schreckmomente, aber dennoch deutlich genug. Was mir ebenfalls gefällt: Das Gerät lässt sich sowohl per USB betreiben als auch mit Batterien puffern, falls der Strom mal weg ist oder man das smarte Gerät mit ins Wohnmobil nehmen möchte. Die drei Helligkeitsstufe für die Hintergrundbeleuchtung, welche nur über den USB-C Betrieb verfügbar sind, machen es angenehm im Alltag – nicht zu grell, aber gut ablesbar. Ein paar kleinere Kritikpunkte gibt’s aber auch: Die Batterien sind leider nicht im Lieferumfang enthalten, das wäre bei dem Preis wirklich wünschenswert gewesen. Außerdem funktioniert die dauerhafte Hintergrundbeleuchtung nur im USB-Betrieb – im Batteriebetrieb geht sie schnell aus. Und ja, das Design ist jetzt kein Blickfang – eher funktional und technisch. Unterm Strich aber ein sehr zuverlässiges, durchdachtes Gerät, das genau das tut, was es soll. Ich würde es jederzeit wieder kaufen und kann es jedem empfehlen, der die Luftqualität in Innenräumen ernst nimmt – sei es zu Hause, im Büro oder in der Schule.

## Frequently Bought Together

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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-02-14*