# Insulation Resistance Tester Unit UT-502A — Uni-T, handheld tester for measuring insulation resistance

**URL:** https://aio.lv/en/product--unit-ut-502a--10661033
**Data updated:** 2026-03-11 11:54 (EET)
**Category:** Measuring tools
**Manufacturer:** Unit
**Manufacturer code:** UT-502A
**EAN:** 5901890028493
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 137.49 €
**Prices and availability valid until:** 2026-07-17 23:59
**Price without VAT (21%):** 113.63 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--unit-ut-502a--10661033

## 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 UT-502A is a handheld insulation resistance tester designed for measuring insulation integrity in electrical systems. It provides reliable insulation resistance readings to help detect degradation, faults, or moisture-related issues in cables, motors, transformers and installations. Suitable for maintenance, troubleshooting and safety verification tasks.

## Long description

The Uni-T UT-502A insulation resistance tester is a handheld instrument for measuring insulation integrity in electrical systems. It is designed to provide reliable insulation resistance readings to help identify degradation, faults, or moisture-related issues in cables, motors, transformers and electrical installations. The unit is intended for maintenance, troubleshooting and safety verification tasks where accurate insulation measurement supports preventive and corrective actions.
Advantages
The handheld design of the UT-502A enables portable use on site and in confined spaces. The tester delivers insulation resistance readings that aid in detecting insulation breakdown and moisture ingress quickly. Built for routine maintenance and field diagnostics, the device supports a range of common insulation checks across electrical equipment and installations. Its straightforward operation reduces training time for technicians and makes it suitable for frequent inspections.
Suitable for
Periodic maintenance of motors and generators
Inspection of power and control cables for insulation degradation
Testing insulation on transformers and switchgear
Troubleshooting electrical installations and distribution boards
Safety verification and preventive maintenance in industrial and commercial facilities
Key specifications
Handheld, portable insulation resistance tester
Designed to measure insulation resistance of cables, motors, transformers and installations
Intended for maintenance, troubleshooting and safety verification tasks
Suitable for field use and routine inspections
How to use
Before testing, isolate the circuit and disconnect equipment according to safety procedures. Connect the tester leads to the conductors and earth reference as required, following the instrument’s manual and standard testing practices. Initiate the insulation resistance measurement and record the reading; compare results against applicable standards or baseline values for the equipment under test. After testing, discharge any stored charge on the equipment and restore connections only when safe to do so.
Usage recommendations
Use the UT-502A as part of a scheduled maintenance programme and combine its readings with visual inspection and other electrical tests. Always follow local electrical safety regulations and the manufacturer’s instructions when performing insulation resistance measurements.

## FAQ

### How much does the Insulation Resistance Tester Uni-T UT-502A cost, and is it available for purchase?

The price is 137.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 1 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 Insulation Resistance Tester Uni-T UT-502A 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/10661033/57069617_large.webp