# FF WI-MEF-3-OPTI-40SET Wi-Fi Energy Consumption Monitor Set with LK-BZ-3 Protection

**URL:** https://aio.lv/en/product--ff-wi-mef-3-opti-40set--12454055
**Data updated:** 2026-05-18 02:42 (EEST)
**Category:** Smart Sensors
**Manufacturer:** FF
**Manufacturer code:** WI-MEF-3-OPTI-40SET
**EAN:** 5902431676890
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 150.49 €
**Prices and availability valid until:** 2026-07-14 23:59
**Price without VAT (21%):** 124.37 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--ff-wi-mef-3-opti-40set--12454055

## 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-40SET is a professional energy monitoring kit featuring the WI-MEF-3-OPTI-40A Wi-Fi meter and LK-BZ-3 protection module. Designed for precise electricity consumption tracking, this set enables real-time data monitoring via Wi-Fi connectivity. It is an ideal solution for residential and commercial energy management, ensuring both accurate measurement and electrical system safety.

## Long description

The FF WI-MEF-3-OPTI-40SET is a professional energy monitoring kit designed to provide precise tracking of electricity consumption in real-time. This comprehensive set includes the WI-MEF-3-OPTI-40A Wi-Fi energy meter and the LK-BZ-3 protection module, offering a robust solution for both residential and commercial energy management. By integrating Wi-Fi connectivity, the system allows users to monitor their energy usage remotely, ensuring transparency and efficiency in electrical consumption.
Advantages
This energy monitoring kit stands out due to its high precision in measuring electrical parameters and its seamless integration with modern wireless networks. The inclusion of the protection module adds a critical layer of safety to the electrical installation, preventing potential damage from surges or overloads. The system is designed for ease of use, providing reliable data that helps in identifying energy-saving opportunities and optimizing overall power consumption patterns.
Suitable for
Residential energy monitoring and smart home integration
Commercial facility power management
Tracking electricity usage for specific appliances or circuits
Safety-conscious electrical system monitoring
When it may not be suitable
This device is not intended for high-voltage industrial applications exceeding its rated capacity. It may also not be suitable for environments without a stable Wi-Fi connection, as remote monitoring features rely on network availability.
Key specifications
Connectivity: Wi-Fi
Components: Energy meter and protection module
Application: Real-time energy consumption tracking
Compatibility: Residential and commercial electrical systems
How to use
The installation should be performed by a qualified electrician to ensure safety and compliance with local electrical codes. The meter is mounted within the distribution board, and the protection module is integrated into the circuit to safeguard the system. Once installed, the device is connected to the local Wi-Fi network through the designated application, allowing for real-time data visualization and configuration of monitoring parameters.
What to consider before purchase
Verify that your electrical panel has sufficient space for both the meter and the protection module.
Ensure your Wi-Fi signal strength is adequate at the location of the electrical distribution board.
Confirm that the electrical load does not exceed the maximum rating of the meter.
Usage recommendations
Regularly check the application for firmware updates to ensure optimal performance and security. Monitor the data trends periodically to identify peak usage times and adjust consumption habits accordingly.

## FAQ

### How much does the FF WI-MEF-3-OPTI-40SET Energy Monitor and Protection Set cost, and is it available for purchase?

The price is 150.49 € (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 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-40SET Energy Monitor and Protection 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/12454055/68756552_large.webp