Test result preview
Manufacturer’s product description
EASTRON SDM630 MODBUS-MID V2 is a versatile power consumption meter for private and semi-professional applications. It is suitable for both single-phase and three-phase installations, covering a wide range of applications. Particularly noteworthy is its support for Modbus RS485 RTU, which allows the device to be easily integrated into existing systems. An illuminated LCD display ensures good readability, even in unfavorable lighting conditions in the control cabinet. In addition to kWh measurement, the meter also offers a pulse counter, which provides additional flexibility in consumption recording. The maximum load capacity of 100A makes it sufficiently powerful for many household and commercial applications. Overall, the product gives the impression of a technically mature device.
Advantages
- Versatile
- Precise measurements
- Robust housing
Disadvantages
- Operating instructions not very detailed
- Display shows many values at once, making it confusing
First impression
Packaging and contents
Here, we take a closer look at the packaging. Sustainability is becoming an increasingly important factor. In addition, adequate protection of the product must of course be ensured. Is the contents of the packaging complete and does the manufacturer make it as easy as possible for me to use the product straight away?
Here we take a closer look at the packaging. Sustainability is becoming an increasingly important factor. In addition, adequate protection of the product must of course be ensured. Is the packaging complete and does the manufacturer make it as easy as possible for me to use the product straight away?
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Comment
Score achieved*
Product protection
Cardboard is sturdy, product adequately protected
Points
Sustainability of packaging
No unnecessary packaging waste
Points
Package contents & scope
Complete
Points
Instructions
Product is self-explanatory
Points
TOTAL
93
Points
Weighting: 20%
*The maximum score is 100 points.
When opening the packaging, the compact and functional design immediately catches the eye. No unnecessary frills, just a clear focus on functionality. The device is securely embedded, virtually eliminating the risk of transport damage. In addition to the electricity meter itself, there is a short instruction manual that explains the most important steps in an understandable way, but unfortunately only in English. Cables or additional materials are not included, which emphasizes the focus on the core product. The first impression conveys seriousness and shows that the manufacturer values a factual presentation. Everything looks neat and well thought out, without unnecessary distractions. For a technical item of this kind, the packaging seems entirely appropriate.

First time in hand
Product workmanship and appearance
Before we put the products to the test in practice, we take a close look at their workmanship. How high-quality are the materials used? Are the feel and appearance satisfactory?
Before we put the products to the test, we take a close look at their workmanship. How high-quality are the materials used? Are the feel and appearance satisfactory?
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Comment
Score achieved*
Visual appearance
Appealing design
Points
Workmanship
Very good workmanship
Points
Stability
Very stable
Points
Sustainability of the product
No information
Points
OVERALL
95
Points
Weighting: 20%
*The maximum number of points is 100

The workmanship of the electricity meter gives a solid impression. The housing is made of robust plastic, which appears sturdy and has no sharp edges. The buttons and display are neatly fitted, creating a professional appearance. Unfortunately, the LCD display is not clearly structured because several values are shown at the same time. The device is neutral in color, which is suitable for use in a control cabinet. The gap dimensions and material quality show no weaknesses, inspiring confidence in the product’s durability. Overall, the appearance conveys a clear technical focus without unnecessary design gimmicks. Those who value functionality will be pleasantly surprised here.
This is what our practical test revealed
Does the manufacturer deliver on its advertising promises?
Our practical test is the most relevant and therefore carries the highest weighting. Here, the product must undergo a wide range of criteria and tests. We check the functions and product promises of the test item.
Our practical test is the most relevant and therefore carries the most weight. Here, the product must undergo a wide variety of criteria and tests. We check the functions and product promises of the test item.
show moreCriterion
Comment
Score achieved*
Accuracy of power consumption measurement
High accuracy
Points
Display readability in different lighting conditions
Readable without any difficulty
Points
Function of communication interfaces
Connection completely stable and error-free
Points
Robustness of housing connections
Housing connections are extremely stable
Points
User interface and user-friendliness
The user interface is easy to use, but some menus and functions are not very intuitive
Points
OVERALL
96
Points
Weighting: 45%
*The maximum score is 100 points
The manufacturer advertises precise consumption measurement, easy integration, and good readability. In practical use, this claim is largely confirmed. The Modbus interface works reliably and allows for easy integration into existing systems. The accuracy of the measured values is also impressive, as is to be expected for a MID-certified device. The illuminated display serves its purpose and makes everyday use easier. Although additional convenience features such as extended data storage are missing, these were not promised either. Overall, NRG INSTRUMENTS keeps its advertising promise and delivers a product that fulfills the stated characteristics. Buyers can rest assured that the advertised core functions are actually provided.

Test plan
A detailed insight into the evaluation criteria for the practical part of the test and the distribution of points can be found here. If you are also interested in the evaluation of our other test criteria, please read our document on the evaluation process.
Price/performance ratio
and consumer reviews
Finally, we examine how the product compares to the competition. Can it compete with the competition in terms of price and quality? Would we generally recommend it for purchase?
Finally, we examine how the product compares to the competition. Can it compete with the competition in terms of price and quality? Would we generally recommend purchasing it?
show moreCriterion
Comment
Score achieved*
Price/performance ratio
Very good performance in the mid-price segment
Points
TOTAL
80
Points
Weighting: 15%
*The maximum score is 100 points
Prices of up to€161.25are charged for equivalent products on the internet. Very inexpensive products areavailablefromas little as €45.99.TheEastron SDM630 SERIES fromNRG INSTRUMENTSis therefore currently inthe mid-price segment with a price of€106.99.The price/performance ratio is rated as very good. This rating takes into account both the high quality and performance as well as the mid-range price, resulting in a very good overall ratio.
Overall result
Weight
Score achieved*
1. Packaging & contents
20
Points
2. Product processing & appearance
20
Points
3. Practical test
45
Points
4. Price/performance ratio
15
Points
TOTAL
Points
*The maximum score is 100 points


























