# Uni-T A37 CO2 Meter for Air Quality Monitoring

**URL:** https://aio.lv/en/product--unit-a37--12478461
**Data updated:** 2026-05-22 07:20 (EEST)
**Category:** Sensors & Detectors
**Manufacturer:** Unit
**Manufacturer code:** A37
**EAN:** 6935750537022
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 113.49 €
**Prices and availability valid until:** 2026-07-15 23:59
**Price without VAT (21%):** 93.79 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--unit-a37--12478461

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 01.07.2026 | free |
| Pickup points | 06.07.2026 | 1.99 EUR |
| Courier delivery to door | 06.07.2026 | 4.99 EUR |

## Summary description

The Uni-T A37 is a professional CO2 meter designed for accurate air quality monitoring in indoor environments. This device measures carbon dioxide concentration levels, helping to ensure a healthy living or working space. It features a clear display for real-time readings, making it an essential tool for homes, offices, and schools to maintain optimal ventilation and air safety standards.

## Long description

The Uni-T A37 CO2 Meter is a professional-grade device engineered for precise indoor air quality monitoring. By continuously tracking carbon dioxide concentration levels, this meter provides essential data to help maintain a healthy and productive environment in homes, offices, and educational facilities. The device is equipped with a high-quality NDIR sensor that delivers reliable readings, ensuring that users can effectively manage ventilation and air safety standards.
Advantages
The primary benefit of the Uni-T A37 is its ability to provide real-time, accurate data on CO2 levels, temperature, and humidity, all visible on a clear, backlit LCD screen. The integration of an NDIR sensor combined with an automatic calibration feature ensures long-term stability and measurement precision without the need for frequent manual adjustments. Furthermore, the device includes a built-in alarm system that provides both audible and visual alerts when CO2 concentrations exceed safe thresholds, allowing for immediate corrective action to improve air quality.
Suitable for
Monitoring air quality in residential living spaces
Ensuring proper ventilation in office environments
Maintaining healthy air standards in classrooms and schools
Checking environmental conditions in indoor public areas
When it may not be suitable
This device is designed specifically for indoor use and is not suitable for monitoring outdoor air quality or extreme industrial environments where hazardous gases or high concentrations of pollutants may be present. It should not be used as a primary safety device for detecting life-threatening gas leaks or in environments with high levels of dust and moisture that could damage the internal sensor.
Key specifications
CO2 measurement range: 400–5000 ppm
Temperature measurement range: -10°C to 50°C
Humidity measurement range: 0–99% RH
Sensor type: NDIR
Display: 42 × 65 mm LCD with backlight
Power supply: Rechargeable 3.7 V Li-ion battery
Charging interface: Micro USB
Dimensions: 75 × 55 × 130 mm
Weight: 195 g
How to use
To begin using the Uni-T A37, ensure the device is fully charged using the provided Micro USB cable. Once powered on, the meter will begin monitoring the environment automatically. Place the device in a central location away from direct air vents or windows to obtain the most representative readings. The screen will display the current CO2 concentration, temperature, and humidity levels. If the CO2 levels rise above the pre-set safety limit, the device will trigger an alarm, signaling that the room requires better ventilation, such as opening a window or adjusting the HVAC system.
What to consider before purchase
Ensure the intended environment is within the specified operating temperature and humidity range.
Verify that the device is kept away from direct sources of CO2, such as human breath or combustion appliances, to avoid false high readings.
Consider the need for periodic charging, as the device operates on a rechargeable battery.
Usage recommendations
For the most accurate results, allow the device to stabilize in the room for several minutes after powering it on. Avoid placing the meter in areas with stagnant air or directly in the path of airflow from air conditioning units to ensure the sensor captures a true representation of the room's air quality.

## FAQ

### How much does the Uni-T A37 CO2 Meter \| Air Quality Monitor cost, and is it available for purchase?

The price is 113.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 30 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 01.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

### Can Uni-T A37 CO2 Meter \| Air Quality Monitor be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Unit products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Unit service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/12478461/68799397_large.webp