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header-product Deye SEM DTSU666-CT Smart meter with current transformers
132.49 €

Deye SEM DTSU666-CT Smart meter with current transformers

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Deye SEM DTSU666-CT Smart Meter with Current Transformers Photo 1
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Deye SEM DTSU666-CT Smart Meter with Current Transformers Photo 1
Deye SEM DTSU666-CT Smart Meter with Current Transformers Photo 2

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Short description

Deye SEM DTSU666-CT smart meter with current transformers designed for accurate electrical energy measurement and monitoring in photovoltaic and power systems. Features reliable performance and comes with a 120-month warranty, suitable for precise energy management applications.
Available for order: 50 pcs.
Warranty: 2 Years
SKU: 12673426
Manufacturer: Deye
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Cheapest delivery:

Unisend LV

Pick-up points

Unisend LV

Cost

1.99 €

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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
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02.10.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 €
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From 1.99 €
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All payment Methods:
Cash payment, Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment
36 months installment: from 3.68 euros per month
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Product information

Description

The Deye SEM DTSU666-CT Smart meter with current transformers is an advanced measurement device engineered for precise electrical energy monitoring in photovoltaic and general power systems. Designed to integrate seamlessly with energy management setups, this smart meter ensures accurate tracking of power generation and consumption data. Built with reliable components, the device supports long-term operational stability and comes backed by an extensive 120-month manufacturer warranty.

Advantages

This smart meter provides exceptional measurement accuracy for complex electrical networks, helping users maintain a clear overview of their power usage. Its robust construction ensures dependable performance in various operating conditions. The inclusion of dedicated current transformers allows for straightforward integration into existing electrical infrastructures. Furthermore, the extended warranty period reflects the high build quality and reliable engineering of the device.

Suitable for

  • Photovoltaic solar systems requiring precise energy monitoring
  • Power management and electrical consumption tracking applications
  • Residential and commercial installations needing accurate grid interaction data

When it may not be suitable

This device may not be suitable for electrical systems that operate outside its specified technical parameters or require incompatible communication protocols. It is designed specifically for compatible power and photovoltaic setups and cannot function effectively as a standalone meter without the correct supporting infrastructure.

Key specifications

  • Brand: Deye
  • Model: SEM DTSU666-CT
  • Product family: Smart meter with current transformers
  • Net weight: 0.40 kg
  • Gross weight: 0.50 kg
  • Warranty: 120 months

How to use

Installation of the Deye SEM DTSU666-CT Smart meter should be performed by a qualified electrician in accordance with local electrical codes and safety regulations. The unit must be connected correctly to the power system along with the supplied current transformers to ensure proper signal acquisition. Once installed, the meter continuously measures electrical parameters, allowing compatible monitoring systems to access real-time energy data.

What to consider before purchase

  • Verify compatibility with your existing inverter or energy management system
  • Ensure proper physical space is available in the electrical panel for the meter and current transformers
  • Confirm that installation will be performed by a certified professional
Usage recommendations: Regularly check the meter connection and system integration data to ensure continuous and accurate energy tracking throughout its operational lifespan.

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Product comparison

The smart meter Deye SEM DTSU666-CT Smart meter with current transformers is compared with the three-phase energy meter Shelly Pro 3EM 120A v2 DIN Rail Three-Phase Energy Meter with 3x 120A Current Transformers, WLAN, LAN, and Bluetooth. Both devices are designed for accurate electrical energy measurement and monitoring using current transformers. The main differences lie in their ecosystem integration: the Deye model is optimized for photovoltaic and energy management systems, whereas the Shelly alternative targets smart home and industrial automation environments through built-in wireless and wired communication interfaces.

⚙️ The table below compares the device type, connectivity features, intended purpose, and integration capabilities to help you understand their practical differences.

ParameterDeye SEM DTSU666-CTShelly Pro 3EM 120A v2Practical significance
Device typeSmart energy meter with current transformersProfessional DIN rail three-phase energy meter with 120A transformersBoth devices measure electrical energy, but Shelly is specifically designed for DIN rail mounting.
Interfaces and connectivityAdditional wireless modules not specifiedWLAN, LAN, and BluetoothShelly offers flexible network connectivity options for real-time remote monitoring and data analysis.
Purpose and ecosystemPhotovoltaic and power systems for precise energy management applicationsIntegration into smart home or industrial automation systemsDeye is better suited for solar power applications, while Shelly fits comprehensive smart home automation.

◎ The table below evaluates which product is more suitable for various usage scenarios and buyer needs.

Use caseRecommended productWhy
Solar power system monitoringDeye SEM DTSU666-CTDesigned specifically for energy measurement and monitoring in photovoltaic and power systems.
Smart home integration with remote accessShelly Pro 3EM 120A v2Supports WLAN, LAN, and Bluetooth for seamless integration and real-time data analysis.
The choice between these devices depends on your setup: Deye SEM DTSU666-CT is best suited for specialized photovoltaic and power management systems, whereas Shelly Pro 3EM 120A v2 is preferable for smart home and industrial automation projects requiring network connectivity via Wi-Fi, Ethernet, or Bluetooth.
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Customer reviews

Customer questions

FAQ

How much does the Deye SEM DTSU666-CT Smart Meter with Current Transformers cost, and is it available for purchase?

The price is 132.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 50 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 Tuesday 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: Cash payment, Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

Can Deye SEM DTSU666-CT Smart Meter with Current Transformers be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. We work with leading banks and leasing companies in Latvia, allowing you to make your purchase on convenient terms — with a minimal down payment and a repayment period from 3 to 36 months. You can apply for credit or installments for the Deye SEM DTSU666-CT Smart Meter with Current Transformers online, and the application process is as simple as possible:
  • Select the product on the website and add it to your cart;
  • When placing your order, choose the payment method “Installments”;
  • Fill in the required details for the lending partner;
  • Receive a decision within a few minutes.
For more information about available payment options, interest-free installment terms, and credit conditions in Latvia, please visit the Payment page.

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 Deye 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 Deye 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. We will assist with consultation, warranty claim processing, and coordination with certified service centers.
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14-Day Return Policy We are confident in our quality, but if the purchase doesn’t fit — you have 14 days to return the product with peace of mind.
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Quality Since 2008 AiO.lv has been on the market for over 18 years and has earned trust — with more than 6000 genuine positive reviews on Google.