# Electric meter ORNO OR-WE-503 — electronic power meter, 230 V, 5 A, 50 Hz, white

**URL:** https://aio.lv/en/product--orno-or-we-503--12024581
**Data updated:** 2026-03-13 14:26 (EET)
**Category:** Sensors & Detectors
**Manufacturer:** ORNO
**Manufacturer code:** OR-WE-503
**EAN:** 5907796683330
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 30.99 €
**Prices and availability valid until:** 2026-08-09 23:59
**Price without VAT (21%):** 25.61 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--orno-or-we-503--12024581

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 29.07.2026 | free |
| Pickup points | 03.08.2026 | 1.89 EUR |
| Courier delivery to door | 03.08.2026 | 4.99 EUR |

## Summary description

ORNO OR-WE-503 is an electronic electric meter for measuring power output in single-phase installations. Rated for 230 V input voltage, 5 A nominal current and 50 Hz AC frequency. Compact DIN-style dimensions (36.5 × 65 × 129 mm) and white housing suit panel or rail mounting for residential or light commercial energy monitoring.

## Long description

ORNO OR-WE-503 is a single-phase electricity meter designed to measure active energy in 230 V electrical installations with a maximum current of 80 A. The meter provides clear consumption readings on an LCD display and includes a pulse output for remote counting or integration with data loggers and building management systems. Its compact DIN-rail compatible housing and standard connection terminals make it suitable for residential and light commercial installations where accurate energy measurement and simple data export are required.
Advantages
The ORNO OR-WE-503 combines direct single-phase measurement with a clear LCD readout, enabling easy verification of real-time and cumulative consumption. The built-in pulse output allows connection to external monitoring equipment or centralized metering systems without modifying the primary measurement circuit. Low standby power consumption and a robust mounting arrangement ensure long-term stability and reliable operation under normal domestic and light commercial loads.
Suitable for
 Residential apartment and house energy monitoring
 Small commercial premises and office metering
 Integration with data loggers and building management systems via pulse output
 Energy auditing and consumption verification for single-phase circuits
Key specifications
 Supply voltage: 230 V AC single-phase
 Maximum current: 80 A (direct connection)
 Measurement type: active energy (kWh)
 Display: LCD for cumulative consumption and numerical readout
 Output: pulse output for remote counting and integration
 Mounting: DIN-rail compatible housing with screw terminals
 Operating environment: designed for residential and light commercial electrical systems
How to use
Install the meter on a suitable DIN rail inside the distribution board and connect the line and neutral conductors to the designated terminals according to the wiring diagram supplied with the device. Ensure the meter is securely fixed and that all connections are tightened to the recommended torque. Read the cumulative kWh value from the LCD display. To use the pulse output, connect the pulse counting input of an external logger or building management system to the meter's pulse terminal and configure the external device to recognise the pulse rate specified by the meter documentation.
Usage recommendations
Use the ORNO OR-WE-503 within its rated voltage and current limits and follow local electrical codes during installation. For accurate long-term measurements, verify connection integrity periodically and protect the meter from moisture and excessive dust. When integrating with data loggers or BMS, check pulse polarity and pulse constant in the documentation to ensure correct energy accounting.

## Specifications

| Feature | Value |
|---|---|
| Type | Electronic |
| Supported protocols | brak |
| Height | 129 mm |
| Input voltage | 230 |
| Width | 36.5 mm |
| Depth | 65 mm |
| Product colour | White |
| Rated current | 5 A |
| Units of measurement | kWh |
| AC input frequency | 50 |
| Display type | LCD |
| Measuring functions | Power output |

## FAQ

### How much does the ORNO OR-WE-503 electronic electric meter cost, and is it available for purchase?

The price is 30.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 6 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 29.07.2026 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/12024581/67614074_large.webp