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1. Question: What is the difference in phase capability between the custom or standard three-phase multifunction energy meter and the Single Digital STS Energy Meter? Answer: The custom or standard three-phase multifunction energy meter is designed for three-phase electrical systems, whereas the Single Digital STS Energy Meter is designed for single-phase electrical systems. 2. Question: Are all the listed digital energy meters equipped with a digital display? Answer: Yes, all the listed digital energy meters have a digital-only display type. 3. Question: Can the Best price EU plug Watt Meter be used in countries with EU plug standards? Answer: Yes, the Best price EU plug Watt Meter is designed for use in countries with EU plug standards, as it comes with an EU plug. 4. Question: Is the Single Digital STS Energy Meter designed for prepaid electricity payment systems? Answer: Yes, the Single Digital STS Energy Meter is a prepaid electric meter, indicating it is designed for prepaid electricity payment systems. 5. Question: Can the three-phase multifunction energy meter be mounted on a din rail? Answer: Yes, the three-phase multifunction energy meter is designed to be din rail mounted, making it suitable for integration into electrical panels. 6. Question: Are the Best price EU plug Watt Meters suitable for monitoring electricity consumption in residential homes? Answer: Yes, the Best price EU plug Watt Meters are suitable for monitoring electricity consumption in residential homes, especially for appliances compatible with single-phase power. 7. Question: Do any of the listed digital energy meters offer smart capabilities? Answer: The product descriptions do not explicitly mention smart capabilities for the listed digital energy meters, but the term "smart electric energy meter" suggests that there may be some level of smart functionality, such as remote monitoring or data analysis features. 8. Question: Is there a difference in the application between the three-phase and single-phase digital energy meters listed? Answer: Yes, the three-phase digital energy meter is likely intended for commercial or industrial settings with three-phase power systems, while the single-phase meters are more suited for residential or light commercial settings where single-phase power is common. 9. Question: Can the prepaid electricity payment meter be used for both residential and commercial applications? Answer: While the Single Digital STS Energy Meter is primarily designed for prepaid electricity systems, its suitability for residential or commercial applications would depend on the specific requirements of the electrical system and the capacity of the meter. 10. Question: Are any of the listed digital energy meters designed for outdoor installation? Answer: The product information does not specify whether the digital energy meters are suitable for outdoor installation, so it's recommended to check the product specifications or contact the supplier for more detailed information regarding installation environments.