# Uni-T UT353BT Mini Sound Level Meter with Bluetooth Connectivity

**URL:** https://aio.lv/en/product--unit-ut353bt--12478419
**Data updated:** 2026-05-22 07:21 (EEST)
**Category:** Measuring tools
**Manufacturer:** Unit
**Manufacturer code:** UT353BT
**EAN:** 6935750535318
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 27.99 €
**Prices and availability valid until:** 2026-07-04 23:59
**Price without VAT (21%):** 23.13 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--unit-ut353bt--12478419

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 19.06.2026 | free |
| Pickup points | 26.06.2026 | 1.99 EUR |
| Courier delivery to door | 26.06.2026 | 4.99 EUR |

## Summary description

The Uni-T UT353BT is a compact digital sound level meter designed for precise noise measurement in various environments. Featuring Bluetooth connectivity, it allows for seamless data transmission to mobile devices for real-time monitoring and analysis. This portable device is ideal for industrial safety, environmental noise testing, and acoustic research, offering reliable performance and ease of use for professionals and hobbyists alike.

## Long description

The Uni-T UT353BT Mini Sound Level Meter is a compact and reliable digital instrument designed for precise noise level monitoring in a wide range of environments. This portable device features a high-quality 1/2-inch condenser microphone and offers a measurement range of 30 to 130 dB, making it suitable for both professional industrial applications and personal use. With its integrated Bluetooth connectivity, the meter seamlessly pairs with the iENV mobile application, allowing users to perform real-time data analysis, logging, and export directly on their smartphones or tablets.
Advantages
The primary advantage of the Uni-T UT353BT is its combination of portability and advanced functionality. Its lightweight, ergonomic design ensures ease of use during extended measurement sessions, while the backlit LCD screen provides clear visibility in various lighting conditions. The device offers flexible sampling rates, allowing users to switch between fast and slow modes to capture transient or steady noise levels accurately. Furthermore, the inclusion of Bluetooth technology significantly enhances workflow efficiency by enabling remote monitoring and digital data management, eliminating the need for manual record-keeping.
Suitable for
Industrial noise safety compliance monitoring
Environmental noise testing in residential or commercial areas
Acoustic research and sound system calibration
Educational purposes and hobbyist sound level assessments
When it may not be suitable
This device is not intended for high-precision laboratory-grade acoustic analysis that requires Class 1 sound level meter certification. It is designed for general-purpose noise measurement and may not be suitable for legal noise enforcement or specialized scientific applications requiring specific international acoustic standards beyond its current specifications.
Key specifications
Measurement range: 30 to 130 dB
Accuracy: ±1.5 dB
Resolution: 0.1 dB
Frequency range: 31.5 Hz to 8 kHz
Sampling frequency: Fast (125 ms) and Slow (1000 ms)
Connectivity: Bluetooth for iENV app (Android/iOS)
Display: Backlit LCD (32 x 26 mm)
Power supply: 3 x 1.5 V (R03) batteries
Dimensions: 150 x 52 x 27 mm
Weight: 116 g
How to use
To begin using the device, insert the provided batteries into the compartment on the back. Power on the unit using the dedicated button. For accurate readings, ensure the microphone is pointed toward the sound source and use the included windscreen if measuring in outdoor or windy conditions. You can toggle between fast and slow sampling modes depending on the nature of the noise. To utilize the Bluetooth feature, download the iENV app on your mobile device, enable Bluetooth, and connect to the meter to start live data streaming and logging.
What to consider before purchase
Ensure your mobile device is compatible with the iENV application.
Verify if the measurement range and accuracy meet your specific regulatory or project requirements.
Consider the environment of use; while portable, the device is not waterproof.
Usage recommendations
For the most accurate results, hold the meter at arm's length or mount it on a tripod to minimize the influence of the user's body on sound reflections. Always use the included windscreen when measuring outdoors to prevent wind noise from interfering with the microphone readings.

## FAQ

### How much does the Uni-T UT353BT Mini Sound Level Meter cost, and is it available for purchase?

The price is 27.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 70 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 19.06.2026 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. All transactions are 100% secure and encrypted.

### 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/12478419/68799340_large.webp