# Uni-T UT533 Insulation Resistance Tester

**URL:** https://aio.lv/en/product--unit-ut533--12478407
**Data updated:** 2026-05-22 07:21 (EEST)
**Category:** Measuring tools
**Manufacturer:** Unit
**Manufacturer code:** UT533
**EAN:** 6935750553305
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 198.99 €
**Prices and availability valid until:** 2026-07-13 23:59
**Price without VAT (21%):** 164.45 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--unit-ut533--12478407

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 07.07.2026 | free |
| Pickup points | 10.07.2026 | 1.99 EUR |
| Courier delivery to door | 10.07.2026 | 4.99 EUR |

## Summary description

The Uni-T UT533 is a professional-grade insulation resistance tester designed for precise electrical diagnostics. This device measures insulation resistance, AC/DC voltage, and continuity, making it an essential tool for maintenance and safety testing of electrical systems, cables, and equipment. It features a robust design for reliable performance in various industrial and field environments.

## Long description

The Uni-T UT533 Insulation Resistance Tester is a professional-grade diagnostic tool that integrates the functionality of a high-precision digital multimeter with a robust insulation resistance tester. Engineered for versatility, this device supports test voltages up to 1000V, making it an indispensable asset for electrical maintenance, safety inspections, and industrial troubleshooting. Its dual-function design allows technicians to perform comprehensive electrical diagnostics, including voltage, current, resistance, and capacitance measurements, within a single, reliable unit.
Advantages
This device offers significant efficiency gains by combining multiple measurement capabilities into one compact housing, which eliminates the need to carry several separate instruments. The inclusion of True RMS measurement technology ensures that users obtain accurate readings even when dealing with non-sinusoidal or distorted electrical signals. Furthermore, the device features a large, backlit dual display that allows for the simultaneous monitoring of two parameters, significantly streamlining the diagnostic process. The robust construction and adherence to high safety standards provide peace of mind when working in demanding industrial or field environments.
Suitable for
Testing insulation integrity of electrical cables and wiring
Maintenance and diagnostics of electric motors and transformers
General electrical troubleshooting in residential and commercial installations
Laboratory testing and quality control of electronic components
This device may not be suitable for high-voltage power distribution systems exceeding the specified CAT III 1000V or CAT IV 600V safety ratings. Additionally, it is not intended for use in explosive atmospheres or environments where specialized intrinsically safe equipment is strictly required.
Key specifications
Insulation resistance range: 0.1MΩ to 2GΩ
Selectable test voltages: 50V to 1000V
AC/DC voltage measurement: up to 1000V
AC/DC current measurement: 60mA to 600mA
Resistance measurement: 600Ω to 40MΩ
Capacitance measurement: 10nF to 100µF
Safety compliance: CAT III 1000V, CAT IV 600V
How to use
To begin, insert the provided batteries into the battery compartment and connect the test leads to the appropriate input terminals based on the desired measurement function. Select the required mode using the rotary dial. For insulation testing, ensure the circuit under test is completely de-energized, connect the leads, select the appropriate test voltage, and press the test button to initiate the measurement. Always observe the display for the final reading and ensure the test leads are disconnected safely after the procedure is complete.
What to consider before purchase
Verify that the maximum test voltage meets the requirements of your specific electrical equipment
Ensure the device's safety category matches your working environment
Check if the measurement ranges for current and resistance cover your typical diagnostic needs
Confirm that the included accessories, such as the temperature probe, align with your intended applications
Usage recommendations
Always verify the device is set to the correct measurement mode before making contact with live circuits. Ensure that insulation tests are only performed on circuits that have been properly isolated from the power supply to prevent damage to the device and ensure user safety.

## FAQ

### How much does the Uni-T UT533 Insulation Resistance Tester cost, and is it available for purchase?

The price is 198.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 78 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 07.07.2026 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 UT533 Insulation Resistance 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/12478407/68799328_large.webp