What type of electricity meter can be called a wireless electricity meter?
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Wireless electricity meter is an energy metering device that integrates wireless communication modules and can transmit electricity data through electromagnetic waves. Its essence is to break free from the limitations of wired lines such as RS485 and achieve intelligent meter reading, monitoring, and management remotely. Special attention should be paid to the fact that some materials mention "radio wave chronometers" (such as radio wave watches) as time calibration devices, which belong to different categories from "radio meters" in the field of energy measurement, and should be avoided from confusion.
2、 Main types: Divided by communication technology and function
（1） Classified by wireless communication technology (core division dimension)
NB IoT wireless electricity meter
Adopting narrowband IoT technology, it has the characteristics of low power consumption, wide coverage, and large connectivity. Powered by lithium batteries, it can operate continuously for more than 6 years. The signal can penetrate enclosed environments such as basements and can directly connect to the public network without the need for additional gateways. It is suitable for dispersed scenarios such as old residential areas and rural areas.
4G full network wireless electric meter
Relying on 4G mobile networks to achieve high-speed data transmission, with strong real-time performance but high power consumption, it requires mains power supply and is mostly used in industrial plants, pump rooms, and other scenarios that require high data timeliness.
LoRa wireless meter
Based on low-power wide area network technology, the transmission distance can reach several kilometers, making it suitable for large-scale cluster deployment, such as sub metering in smart parks and commercial complexes.
WiFi wireless meter
Using a local area network to achieve close range data transmission with high transmission speed and requiring access to WiFi networks, it is commonly used in scenarios such as smart homes and small shops.
Multi mode communication wireless electric meter
Integrating two or more wireless technologies (such as NB IoT+4G), it can automatically switch communication modes according to the environment and adapt to complex scene requirements.
（2） Classified by functional characteristics
Wireless meter reading and electricity meter
Basic functional wireless electricity meter, with the core implementation of automatic uploading of electricity consumption data, replacing manual meter reading, reducing errors and labor costs.
Smart wireless electricity meter
It has functions such as real-time monitoring, rate statistics (peak and valley), and grid parameter measurement (voltage/current/power factor), and supports linkage with cloud platforms to analyze electricity usage habits.
Prepaid wireless electricity meter
By integrating wireless communication and prepaid modules, users can recharge through a mobile app. When the balance is insufficient, it will automatically trigger a power outage alarm without the need for manual reminders.
3、 Key feature: The core symbol that distinguishes it from traditional electricity meters
Wireless transmission as the core: no need to set up dedicated communication lines, data remote interaction is achieved through built-in modules, with low installation costs and strong flexibility;
Intelligent function integration: In addition to measurement, it is necessary to have management functions such as data freezing, fault alarm (such as voltage abnormality, lid opening detection), remote valve control, etc;
Compliance with measurement accuracy standards: It is necessary to meet the accuracy level specified in GB/T 17215 (such as 1.0 for civilian use and 0.2S for industrial use) to ensure accurate and reliable data.
