# Sonel MRU-120HD Earth Resistance Meter

**URL:** https://aio.lv/en/product--sonel-wmplmru120hd--12448622
**Data updated:** 2026-05-18 02:54 (EEST)
**Category:** Measuring tools
**Manufacturer:** Sonel
**Manufacturer code:** WMPLMRU120HD
**EAN:** 5907624031005
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 1 787.49 €
**Prices and availability valid until:** 2026-07-22 23:59
**Price without VAT (21%):** 1 477.26 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--sonel-wmplmru120hd--12448622

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 14.07.2026 | free |
| Pickup points | 17.07.2026 | 1.89 EUR |
| Courier delivery to door | 17.07.2026 | 4.99 EUR |

## Summary description

The Sonel MRU-120HD is a professional earth resistance meter designed for precise electrical measurements in various grounding systems. This robust device enables reliable testing of earthing, soil resistivity, and continuity of protective conductors. It is an essential tool for electrical engineers and technicians requiring accurate diagnostics in industrial, commercial, and residential power installations.

## Long description

The Sonel MRU-120HD Earth Resistance Meter is a professional-grade diagnostic instrument engineered for high-precision measurements within diverse grounding systems. This robust device provides reliable data for testing earthing installations, soil resistivity, and the continuity of protective conductors. Designed for demanding environments, it serves as an essential tool for electrical engineers and technicians who require accurate, repeatable results in industrial, commercial, and residential power installations.
Advantages
The device stands out due to its high measurement accuracy and resistance to harsh environmental conditions, making it suitable for field work. Its intuitive interface allows for efficient data collection, while the integrated memory and communication features facilitate seamless reporting and analysis. The meter supports multiple measurement methods, ensuring versatility across different types of grounding configurations and soil conditions.
Suitable for
Testing earthing systems in industrial and commercial facilities
Measuring soil resistivity for grounding design
Verifying the continuity of protective and equipotential bonding conductors
Diagnostic testing in residential electrical installations
When it may not be suitable
This meter may not be the optimal choice for basic hobbyist tasks or small-scale residential troubleshooting where simpler, less expensive continuity testers would suffice. Additionally, it is not designed for measuring live voltage or current in energized circuits beyond its specified safety parameters.
Key specifications
Measurement of earth resistance using 2-pole, 3-pole, and 4-pole methods
Measurement of soil resistivity using the Wenner method
Continuity measurement of protective conductors with a current of at least 200 mA
High resistance to dust and moisture ingress
Internal memory for storing measurement results
How to use
To perform a measurement, connect the appropriate test leads to the device terminals according to the selected measurement method. Place the auxiliary probes into the ground at the required distances for 3-pole or 4-pole testing. Select the desired function on the device, ensure proper contact with the grounding electrode, and initiate the measurement. The device will automatically process the signal and display the resistance value on the screen.
What to consider before purchase
Ensure the required test leads and auxiliary probes are available for your specific grounding setup
Verify that the device calibration meets your local regulatory requirements
Consider the environmental conditions of your typical work sites to ensure the device rating is sufficient
Usage recommendations
Regularly inspect test leads for damage and ensure that auxiliary probes are clean to maintain measurement accuracy. Always perform a self-test before starting a series of measurements to verify device functionality.

## FAQ

### How much does the Sonel MRU-120HD Earth Resistance Meter cost, and is it available for purchase?

The price is 1,787.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 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 14.07.2026 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, Leasing for legal entities. All transactions are 100% secure and encrypted.

### Can Sonel MRU-120HD Earth Resistance Meter 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 Sonel 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 Sonel 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/12448622/68751569_large.webp