# Uni-T UT18B MAX True RMS Digital Multimeter

**URL:** https://aio.lv/en/product--unit-ut18b-max--12478381
**Data updated:** 2026-05-22 07:21 (EEST)
**Category:** Measuring tools
**Manufacturer:** Unit
**Manufacturer code:** UT18B MAX
**EAN:** 6935750518090
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 105.49 €
**Prices and availability valid until:** 2026-07-09 23:59
**Price without VAT (21%):** 87.18 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--unit-ut18b-max--12478381

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 02.07.2026 | free |
| Pickup points | 07.07.2026 | 1.99 EUR |
| Courier delivery to door | 07.07.2026 | 4.99 EUR |

## Summary description

The Uni-T UT18B MAX is a professional-grade True RMS digital multimeter designed for accurate electrical measurements. It provides reliable performance for testing voltage, current, resistance, and continuity in various industrial and domestic applications. Featuring a robust design and high-precision measurement capabilities, this device is an essential tool for electricians, technicians, and engineers requiring dependable diagnostic results.

## Long description

The Uni-T UT18B MAX is a professional-grade True RMS digital multimeter engineered for high-precision electrical diagnostics. As the most advanced model in its series, it provides reliable measurements for voltage, current, resistance, capacitance, and frequency. This robust device is specifically designed to meet the needs of electricians, engineers, and technicians who require accurate data for both industrial and domestic electrical systems.
Advantages
This multimeter offers exceptional versatility by combining standard electrical testing with specialized functions such as dedicated LED diode testing and temperature measurement. The True RMS technology ensures accurate readings even with non-sinusoidal waveforms, while the high-resolution 6000-count display provides clear visibility. Users benefit from a durable build, intuitive range switching, and safety features like a wrong-lead connection alarm and CAT III 600V protection, ensuring reliable performance in demanding environments.
Suitable for
Electrical troubleshooting in residential and commercial buildings
Testing and maintenance of LED lighting systems
Temperature monitoring using the included Type K thermocouple
General electronics repair and circuit analysis
Industrial equipment diagnostics and maintenance
When it may not be suitable
This device is not intended for high-voltage industrial environments exceeding the CAT III 600V safety rating. Additionally, users who specifically require a MAX/MIN recording function for tracking signal fluctuations over time may find this model unsuitable, as it does not include this feature.
Key specifications
Measurement range: AC/DC voltage up to 1000V and current up to 10A
Temperature measurement: -55°C to 500°C
Display: 6000-count digital display with adjustable backlight
Safety rating: CAT III 600V
Additional functions: LED diode test, continuity test, relative mode, and data hold
Power supply: 2x 1.5V AA batteries
How to use
To begin, insert the provided batteries into the rear compartment. Connect the appropriate test leads to the input jacks based on the parameter you wish to measure. Use the rotary dial to select the desired function, such as voltage, current, or resistance. The device supports both automatic and manual range switching for maximum flexibility. For temperature measurements, connect the included Type K thermocouple to the designated ports. Always ensure the leads are connected to the correct terminals to trigger the safety alarm if a connection error occurs.
What to consider before purchase
Verify that the CAT III 600V rating meets your specific safety requirements.
Confirm if the absence of a MAX/MIN mode impacts your intended diagnostic tasks.
Ensure the measurement ranges for current and voltage are sufficient for your equipment.
Check that the included accessories, such as the gold-plated leads and fine-tip leads, align with your testing needs.
Usage recommendations: Always inspect the test leads for signs of wear or damage before each use to ensure operator safety. When measuring unknown values, start with the highest range setting to prevent potential damage to the device.

## FAQ

### How much does the Uni-T UT18B MAX True RMS Digital Multimeter cost, and is it available for purchase?

The price is 105.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 120 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 02.07.2026 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 UT18B MAX True RMS Digital Multimeter 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/12478381/68799258_large.webp