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header-product Digital Insulation Resistance Tester Unit UT511 with LCD Display and CAT II / CAT III Safety Rating
115.49 €

Digital Insulation Resistance Tester Unit UT511 with LCD Display and CAT II / CAT III Safety Rating

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Digital Insulation Resistance Tester Unit UT511 with LCD Display and CAT II / CAT III Safety Rating

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Digital Insulation Resistance Tester Unit UT511 with LCD Display and CAT II / CAT III Safety Rating

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Short description

Uni-Trend UT511 digital high-voltage insulation resistance tester designed for precise electrical measurements and diagnostic tasks. Features an easy-to-read LCD display, robust CAT II and CAT III safety ratings, and reliable basic DC and AC voltage accuracy. Ideal for professionals performing maintenance, troubleshooting, and safety verification on electrical systems and equipment.
Available for order: 21 pcs.
Warranty: 2 Years
SKU: 11275129
Manufacturer: Unit
free shipment

Cheapest delivery:

Unisend LV

Pick-up points

Unisend LV

Cost

1.99 €

Deliver

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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
17.11.2026 {{selectedOffer.officeDeliveryString}}
free
Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
23.11.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 € (Weight: 3.23 kg)
Parcel couriers
Unisend LV / Venipak Pickup LV / Venipak Locker LV / DPD Paku skapis / Omniva LV / Latvijas Pasts pakomāts / Latvijas Pasts nodaļa
23.11.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.99 €
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All payment Methods:
Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment
36 months installment: from 3.21 euros per month
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Product information

Description

The Digital Insulation Resistance Tester Unit UT511 with LCD Display and CAT II / CAT III Safety Rating is a professional high-voltage insulation resistance tester designed by Uni-Trend for precise electrical measurements, diagnostic tasks, and safety verification. Built with reliable basic DC and AC voltage accuracy, this measuring tool provides technicians and engineers with the performance needed for routine maintenance and troubleshooting on various electrical systems and equipment.

Advantages

This digital insulation resistance tester offers robust CAT II and CAT III safety ratings, ensuring a high level of protection during demanding electrical diagnostics. The integrated LCD display provides clear, easy-to-read measurement results in different lighting conditions. Designed for durability and precision, the device combines a solid weight of 2 kg with balanced dimensions to maintain stability on the workbench or in the field.

Suitable for

  • Electrical maintenance and troubleshooting in industrial and commercial settings
  • Safety verification of electrical systems and equipment
  • Diagnostic tasks requiring high-voltage insulation resistance testing
  • Accurate AC and DC voltage measurements

When it may not be suitable

This device may not be suitable for casual household tasks or basic DIY electrical projects where high-voltage insulation testing is unnecessary. Additionally, users requiring a lightweight, pocket-sized multimeter for quick continuity checks may find the 2 kg weight and specialized high-voltage feature set less convenient for daily portable use.

Key specifications

  • Digital insulation resistance tester design
  • LCD display for clear readings
  • Basic accuracy for AC voltage: ±(1.5%+3)
  • Basic accuracy for DC voltage: ±(1%+3)
  • Battery voltage: 1.5 V
  • Weight: 2 kg
  • Dimensions: 155 x 94 x 202 mm
  • CAT II and CAT III safety ratings

How to use

Before beginning any measurement, ensure the target electrical system is completely de-energized and follow standard electrical safety protocols. Insert the appropriate batteries with a 1.5 V specification into the device compartment. Connect the test leads to the designated input terminals, select the desired measurement mode on the interface, and apply the probes to the circuit or component under test. Read the measurement value directly from the LCD display once the reading stabilizes.

What to consider before purchase

  • Verify that the CAT II and CAT III safety ratings match your working environment requirements
  • Consider the physical dimensions of 155 x 94 x 202 mm and weight of 2 kg for your portability needs
  • Ensure the measurement functions align with your professional electrical diagnostic tasks

Always inspect the test leads for any signs of damage prior to each use and ensure the instrument is calibrated according to manufacturer guidelines for accurate and safe operation.

All features
Dimensions (WxDxH): Dimensions of the product (Width x Depth x Height).
155 x 94 x 202
Display: The description of display that can includes display type, resolution, size etc.
LCD
Weight: Weight of the product without packaging (net weight). If possible, the net weight is given including standard accessories and supplies. Please note that sometimes the manufacturer leaves out the weight of accessories and/or supplies.
2 kg
Backlight: Product has a built-in light source for its illuminating.
Yes
Battery voltage: The voltage (V) of the battery.
1.5 V
Basic accuracy (DC voltage):
±(1%+3)
Basic accuracy (AC voltage):
±(1.5%+3)
Product type: The sub-category of the product.
Digital multimeter

Description

Machine translation.

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Customer reviews

Customer questions

FAQ

How much does the Unit UT511 Digital Insulation Resistance Tester cost, and is it available for purchase?

The price is 115.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 21 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 17.11.2026 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 Unit UT511 Digital Insulation Resistance Tester be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. We work with leading banks and leasing companies in Latvia, allowing you to make your purchase on convenient terms — with a minimal down payment and a repayment period from 3 to 36 months. You can apply for credit or installments for the Unit UT511 Digital Insulation Resistance Tester online, and the application process is as simple as possible:
  • Select the product on the website and add it to your cart;
  • When placing your order, choose the payment method “Installments”;
  • Fill in the required details for the lending partner;
  • Receive a decision within a few minutes.
For more information about available payment options, interest-free installment terms, and credit conditions in Latvia, please visit the Payment page.

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. We will assist with consultation, warranty claim processing, and coordination with certified service centers.
warranty
14-Day Return Policy
We are confident in our quality, but if the purchase doesn’t fit — you have 14 days to return the product with peace of mind.
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Quality Since 2008
AiO.lv has been on the market for over 18 years and has earned trust — with more than 6000 genuine positive reviews on Google.