# FF WI-MEF-3-OPTI-100SET Wi-Fi Energy Consumption Monitor Set with LK-BZ-3 Protection

**URL:** https://aio.lv/en/product--ff-wi-mef-3-opti-100set--12459848
**Data updated:** 2026-05-18 09:38 (EEST)
**Category:** Smart Sensors
**Manufacturer:** FF
**Manufacturer code:** WI-MEF-3-OPTI-100SET
**EAN:** 5902431676906
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 150.99 €
**Prices and availability valid until:** 2026-07-14 23:59
**Price without VAT (21%):** 124.79 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--ff-wi-mef-3-opti-100set--12459848

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.07.2026 | free |
| Pickup points | 09.07.2026 | 1.99 EUR |
| Courier delivery to door | 09.07.2026 | 4.99 EUR |

## Summary description

The FF WI-MEF-3-OPTI-100SET is a comprehensive energy monitoring solution featuring the WI-MEF-3-OPTI-100A Wi-Fi meter and LK-BZ-3 protection module. Designed for precise three-phase power measurement and system safety, this set allows for real-time energy consumption tracking via Wi-Fi. It is an ideal choice for residential and industrial energy management, providing reliable data and protection against electrical faults.

## Long description

The FF WI-MEF-3-OPTI-100SET is a professional-grade energy monitoring solution designed for precise three-phase power measurement. This comprehensive set includes the WI-MEF-3-OPTI-100A Wi-Fi energy meter and the LK-BZ-3 protection module, providing a robust system for tracking electricity usage and ensuring electrical safety in real-time. By integrating Wi-Fi connectivity, the device allows users to monitor energy consumption data remotely through a network, making it an essential tool for modern energy management in both residential and industrial environments.
Advantages
The primary benefit of this set is its ability to provide accurate, real-time data on energy consumption, which helps in identifying inefficiencies and optimizing power usage. The inclusion of the LK-BZ-3 protection module adds a critical layer of safety, guarding the electrical system against potential faults. Its design facilitates easy integration into existing electrical panels, while the Wi-Fi functionality ensures that users can access consumption statistics from anywhere, promoting better control over energy costs and system reliability.
Suitable for
Residential energy monitoring and cost management
Industrial power consumption tracking
Three-phase electrical system safety monitoring
Remote energy data collection and analysis
This system may not be suitable for environments where there is no stable Wi-Fi network available, as the remote monitoring features rely on connectivity. Additionally, it is intended for three-phase electrical systems and will not function correctly or provide accurate data in single-phase installations.
Key specifications
System type: Three-phase energy monitoring
Connectivity: Wi-Fi enabled
Components: WI-MEF-3-OPTI-100A meter and LK-BZ-3 protection module
Application: Real-time energy consumption tracking
How to use
The installation should be performed by a qualified electrician to ensure compliance with safety standards. The WI-MEF-3-OPTI-100A meter is installed within the electrical distribution board to measure current flow, while the LK-BZ-3 module is connected to provide the necessary protection. Once installed, the device must be connected to a local Wi-Fi network following the manufacturer's configuration instructions. After successful network pairing, energy data can be viewed and analyzed through the designated interface.
What to consider before purchase
Ensure your electrical installation is a three-phase system
Verify the availability of a stable Wi-Fi signal at the installation site
Confirm that the installation space in the distribution board is sufficient for both modules
Usage recommendations
Regularly check the connection status and review energy data logs to identify patterns in consumption and ensure the protection module remains active for optimal system safety.

## FAQ

### How much does the FF WI-MEF-3-OPTI-100SET Energy Monitor Set cost, and is it available for purchase?

The price is 150.99 € (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 06.07.2026 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. All transactions are 100% secure and encrypted.

### Can FF WI-MEF-3-OPTI-100SET Energy Monitor Set 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 FF 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 FF 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/12459848/68761853_large.webp