# Electric energy meter ORNO single-phase 100A RS-485 MID 1-module DIN TH-35mm for PV

**URL:** https://aio.lv/en/product--orno-aw952961--12024580
**Data updated:** 2026-03-12 16:31 (EET)
**Category:** Sensors & Detectors
**Manufacturer:** ORNO
**Manufacturer code:** aw\_952961
**EAN:** 5908254827846
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 54.49 €
**Prices and availability valid until:** 2026-08-02 23:59
**Price without VAT (21%):** 45.03 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--orno-aw952961--12024580

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 22.07.2026 | free |
| Pickup points | 27.07.2026 | 1.89 EUR |
| Courier delivery to door | 27.07.2026 | 4.99 EUR |

## Summary description

Single-phase electric energy meter ORNO with 100 A current rating, RS-485 communication port and MID approval. Designed as a 1-module device for DIN TH-35mm mounting, suitable for photovoltaic (PV) installations and general single-phase power measurement. Provides accurate energy monitoring, remote data readout via RS-485 and compact installation in distribution boards.

## Long description

ORNO single-phase electric energy meter is a compact, DIN-rail mounted measuring device designed for accurate measurement of active energy in single-phase systems. The meter supports up to 100 A continuous current and includes an RS-485 communication interface for remote data readout. With a one-module form factor for TH-35mm DIN rail, this meter is suitable for installations where space is limited, such as distribution boards for photovoltaic (PV) systems and residential electrical circuits.
Advantages
The meter combines compact dimensions with a robust 100 A current rating and certified measurement accuracy, enabling reliable tracking of energy consumption and generation. The RS-485 port allows integration with monitoring systems and remote reading equipment, while the single-module DIN rail design simplifies installation and saves space in electrical panels. MID approval ensures conformity to legal metrology requirements for billing and official measurement where applicable.
Suitable for
 Residential single-phase power monitoring
 Small-scale photovoltaic (PV) installations
 Distribution boards with limited space
 Remote energy monitoring and data logging via RS-485
Key specifications
 Measurement type: Single-phase active energy (kWh)
 Rated current: 100 A
 Mounting: 1-module for TH-35mm DIN rail
 Communication: RS-485 interface
 Approval: MID-certified for legal metrology
How to use
Install the meter on a standard TH-35mm DIN rail inside the distribution board following local electrical codes. Connect the phase and neutral conductors to the meter's terminals according to the wiring diagram and ensure proper tightening of connections. Configure the RS-485 communication parameters (baud rate, parity, address) to match the supervisory system and verify remote connectivity. After installation, check that the meter registers active energy correctly and that any monitoring equipment receives data via the RS-485 link.
Usage recommendations
Use appropriate circuit protection sized for the installation and ensure the meter is installed by a qualified electrician. For RS-485 communication over longer distances, use twisted-pair cable and, if needed, terminate the bus to maintain signal integrity. For PV systems, verify directionality settings if bi-directional measurement is required and confirm compatibility with the monitoring system before commissioning.

## FAQ

### How much does the ORNO single-phase energy meter 100A RS-485 MID cost, and is it available for purchase?

The price is 54.49 € (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 22.07.2026 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. All transactions are 100% secure and encrypted.

### 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 ORNO 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 ORNO 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/12024580/67512824_large.webp