# Uni-T UT311A Vibration Tester

**URL:** https://aio.lv/en/product--unit-ut311a--12478434
**Data updated:** 2026-05-22 07:21 (EEST)
**Category:** Measuring tools
**Manufacturer:** Unit
**Manufacturer code:** UT311A
**EAN:** 6935750531136
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 285.99 €
**Prices and availability valid until:** 2026-07-09 23:59
**Price without VAT (21%):** 236.36 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--unit-ut311a--12478434

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 26.06.2026 | free |
| Pickup points | 01.07.2026 | 1.99 EUR |
| Courier delivery to door | 01.07.2026 | 4.99 EUR |

## Summary description

The Uni-T UT311A is a professional vibration tester designed for precise measurement of acceleration, velocity, and displacement. This handheld device is essential for monitoring the mechanical condition of rotating machinery, motors, and industrial equipment. It features a clear digital display and user-friendly interface, providing reliable data for predictive maintenance and troubleshooting in various industrial environments.

## Long description

The Uni-T UT311A Vibration Tester is a professional-grade handheld instrument engineered for the precise measurement of vibration acceleration, velocity, and displacement. Designed to monitor the mechanical health of rotating machinery, motors, and various industrial equipment, this device provides essential data for predictive maintenance and troubleshooting. Featuring a high-resolution 2.4-inch TFT display with automatic screen rotation and a built-in flashlight, it ensures clear visibility and ease of operation in diverse industrial environments.
Advantages
This vibration tester offers exceptional versatility by providing three distinct measurement modes, allowing users to evaluate dynamic vibrations and overall machine condition with high accuracy. The inclusion of dual frequency modes for acceleration enables the detection of both low-frequency and high-frequency vibrations, ensuring comprehensive diagnostic capabilities. Its ergonomic, lightweight design, combined with a long-lasting rechargeable battery and convenient USB-C charging, makes it an ideal tool for field technicians who require reliable, portable equipment for routine inspections.
Suitable for
Monitoring the condition of rotating machinery and motors
Predictive maintenance in industrial manufacturing plants
Troubleshooting mechanical vibrations in pumps and fans
Routine field inspections of industrial equipment
When it may not be suitable
This device is not intended for use in highly corrosive or explosive environments where specialized intrinsically safe equipment is required. It is also not suitable for measuring vibrations in non-mechanical structures, such as civil engineering projects or building seismic analysis.
Key specifications
Acceleration measurement range: 0.1–199.9 m/s²
Velocity measurement range: 0.1–199.9 mm/s
Displacement measurement range: 0.001–1.999 mm
Acceleration frequency range: LO 10 Hz–1 kHz / HI 1 kHz–15 kHz
Display: 2.4-inch TFT LCD with auto-rotation
Battery: 1350 mAh Li-Ion, up to 12 hours of operation
Charging interface: USB-C
Weight: 191 g (with short probe)
How to use
To begin, attach the appropriate measurement probe—either the long or short version—to the device based on your access requirements. Power on the unit and select the desired measurement mode: acceleration, velocity, or displacement. Place the probe firmly against the surface of the machinery being tested, ensuring stable contact to obtain accurate readings. Use the Data Hold function to freeze the measurement on the screen if necessary for documentation. After completing your inspection, power off the device to conserve battery life.
What to consider before purchase
Ensure the frequency range of the device matches the vibration characteristics of your specific machinery.
Verify that the operating temperature and humidity conditions of your facility are within the specified limits.
Consider the accessibility of the machinery to determine if the included probes are sufficient for your needs.
Usage recommendations
For the most accurate results, ensure the probe is held perpendicular to the surface being measured and maintain consistent pressure throughout the reading process. Regularly check the battery level and recharge via the USB-C port to ensure the device is ready for field use.

## FAQ

### How much does the Uni-T UT311A Vibration Tester cost, and is it available for purchase?

The price is 285.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 80 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 26.06.2026 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, Installment. All transactions are 100% secure and encrypted.

### Can Uni-T UT311A Vibration Tester 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/12478434/68799355_large.webp