# FF DMV3RMS Three-Phase Digital Voltage Indicator True RMS 100-300V

**URL:** https://aio.lv/en/product--ff-dmv3rms--12456251
**Data updated:** 2026-05-18 09:39 (EEST)
**Category:** Sensors & Detectors
**Manufacturer:** FF
**Manufacturer code:** DMV3RMS
**EAN:** 5908312591733
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 132.99 €
**Prices and availability valid until:** 2026-07-13 23:59
**Price without VAT (21%):** 109.91 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--ff-dmv3rms--12456251

## 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 DMV3RMS is a professional three-phase digital voltage indicator designed for precise monitoring of electrical systems. Featuring True RMS measurement technology, it ensures accurate readings within the 100-300V range. This compact device is ideal for industrial and residential electrical panels, providing real-time voltage data to ensure system stability and safety in various electrical installations.

## Long description

The FF DMV3RMS is a professional three-phase digital voltage indicator engineered for the precise monitoring of electrical systems. Utilizing advanced True RMS measurement technology, this device provides highly accurate voltage readings within the 100-300V range, ensuring that users receive reliable data even in non-sinusoidal conditions. Its compact design allows for seamless integration into both industrial and residential electrical distribution boards, offering real-time visibility into the status of three-phase power supplies to maintain system stability and operational safety.
Advantages
The primary benefit of the FF DMV3RMS lies in its True RMS measurement capability, which guarantees accuracy regardless of the waveform shape, making it superior to standard average-responding meters. The digital display offers clear, instantaneous readings, reducing the risk of human error associated with analog gauges. Its robust construction and compact form factor ensure long-term reliability and ease of installation in standard electrical enclosures, providing a cost-effective solution for continuous power monitoring.
Suitable for
Monitoring three-phase electrical networks in residential buildings
Industrial control panels and automation systems
Verification of voltage levels in commercial electrical installations
Preventative maintenance and diagnostic monitoring of power supply stability
When it may not be suitable
This device is not intended for measuring voltages outside the specified 100-300V range and should not be used in high-voltage industrial applications exceeding these limits. It is also not suitable for environments where the operating temperature or humidity levels exceed the manufacturer's specified environmental ratings.
Key specifications
Measurement type: True RMS
Voltage range: 100-300V AC
Phase type: Three-phase
Display: Digital
Mounting: Standard electrical panel
How to use
The device should be installed by a qualified professional in accordance with local electrical safety regulations. It is designed for mounting on a standard DIN rail or within a panel cutout, depending on the specific enclosure configuration. Once connected to the three-phase power supply lines, the device automatically begins monitoring the voltage levels. The digital display provides real-time updates, allowing operators to observe fluctuations or imbalances across the phases immediately.
What to consider before purchase
Verify that your system voltage falls within the 100-300V operating range
Ensure there is sufficient space in your electrical panel for installation
Confirm that the installation environment meets the device's technical requirements
Usage recommendations
For optimal performance and safety, ensure all electrical connections are tightened to the specified torque and that the device is protected by appropriate circuit breakers. Regularly inspect the display for clarity and ensure the unit remains free from dust and moisture accumulation.

## FAQ

### How much does the FF DMV3RMS Three-Phase Digital Voltage Indicator cost, and is it available for purchase?

The price is 132.99 € (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 DMV3RMS Three-Phase Digital Voltage Indicator 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/12456251/68758479_large.webp