# Energy meter ORNO EM-1/B — two-tariff wattmeter with LCD display, internal battery, black

**URL:** https://aio.lv/en/product--orno-em-1b--12050687
**Data updated:** 2026-03-12 19:33 (EET)
**Category:** Sensors & Detectors
**Manufacturer:** ORNO
**Manufacturer code:** EM-1/B
**EAN:** 5908254828348
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 14.99 €
**Prices and availability valid until:** 2026-08-01 23:59
**Price without VAT (21%):** 12.39 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--orno-em-1b--12050687

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 21.07.2026 | free |
| Pickup points | 24.07.2026 | 1.89 EUR |
| Courier delivery to door | 24.07.2026 | 4.99 EUR |

## Summary description

ORNO EM-1/B is a two-tariff wattmeter and energy calculator with an LCD display and internal battery. It measures electrical energy consumption for two separate tariffs, presents readings on a clear LCD and stores data during power interruptions via the built-in accumulator. Suitable for home or small commercial monitoring of electricity usage and cost allocation by tariff.

## Long description

ORNO EM-1/B is a two-tariff wattmeter with an LCD display and an internal battery designed to measure and record electrical energy consumption across two separate tariff periods. The device displays instantaneous power, cumulative energy for each tariff and total consumption on a clear LCD, while the internal accumulator preserves recorded data during short power outages. Its compact black enclosure fits domestic installations and small commercial setups where monitoring of energy usage by tariff is required.
Advantages
The meter supports two independent tariff counters, allowing accurate separation of energy consumption according to time-of-use pricing. A backlit LCD provides legible readings of power and energy values, and the internal battery keeps totals stored when mains power is interrupted. The unit is compact and simple to install, with a user interface focused on essential readouts and reliability for continuous monitoring.
Suitable for
Residential apartments and houses that use time-of-use tariffs
Small commercial premises requiring tariff-based energy tracking
Cost allocation between tenants or departments based on consumption periods
Monitoring and verifying electricity usage for energy-saving measures
Key specifications
Measurement type: active energy (watt-hours) with two separate tariff registers
Display: LCD showing instantaneous power, per-tariff and total energy readings
Power backup: internal rechargeable accumulator to retain data during power loss
Enclosure color: black; compact form factor suitable for panel or wall mounting
Suitable for single-phase residential and small commercial installations
How to use
Install the ORNO EM-1/B in accordance with local electrical safety regulations, connecting the meter to the incoming phase and neutral as required for single-phase metering. After wiring, verify that the LCD powers up and that the meter records instantaneous power. Configure tariff settings and reset counters if necessary following the manufacturer’s instructions. During operation, read the LCD to view current power and cumulative energy for each tariff; the internal battery will maintain totals if mains supply is interrupted.
Usage recommendations
Locate the meter in a dry, ventilated area away from direct sunlight and excessive heat. Ensure connections are tightened to specified torque values and that installation is performed by a qualified electrician. Periodically record readings for billing or monitoring, and check the accumulator function after extended power outages.

## FAQ

### How much does the Energy meter ORNO EM-1/B — cost, and is it available for purchase?

The price is 14.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 4 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 21.07.2026 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/12050687/67536908_large.webp