ADW300 series Wireless Energy Meter for IOT Platform

● Communication: 4G,WiFi,LoRa,LoRaWAN, RS485

● Measurement: 3 Phase voltage, current, power, power factor, etc

● Application: Building, Factory, Smart Grids, DB Room and etc

● Rated Voltage: AC 3*220/380V,3*230/400V

● Rated Current: AC 3×1(6)A

● Standard&Certificate: CE,IEC,LVD

Product Detail

Technical Parameter


Wireless Energy Meter

WiFi, 4G, Lora, LoRaWAN, NB-IOT Communication Ways for Your Selection


        ADW300 wireless energy meters have multiple built-in communication modules designed for diffent situation when paired with IoT energy management system or other demand for remote connection. Meanwhile, ADW300 can provide various extration function module and various electrical parameters measurement to meet diffent requests from the customers. Also, as the prove for quality, ADW300 is strictly compliant of the standard of IEC 62052-11; IEC62053-22; LVD. Certificates are shown below.

Wireless Energy Meter

Coding Rule

IOT energy meter


IOT energy meter



Communication Function

●  WiFi

●  4G

●  Lora

●  Lorawan


●  RS485(Modbus-RTU)

It can work with IOT Platform

Electricity Data Measurement

● kWh  (positive and negative)

● kVarh (positive and negative)

● U, I, P, Q, S, PF, Hz, etc.

● Harmonic (THDv, 2-31st)

● 3-phase current & voltage imbalance

● Multi tariff

● Max demand, etc.

● 12 months' historical data

● 2 DO Digital Output

● 4 DI Digital Input

● Accuracy:Class 0.5S

● Measures temperature of A/B/C/N

● Measures 1 channel of leakage current

● Power outage alarm

● HMI Programming: Setting of CT/PT Ratio, Phase Wiring, Communication and etc

● Standard&Certificate: CE; IEC






Local Configuration

● Keypads HMI for Setting (CT/PT ratio, Wiring and etc)

● Setting through Adjustment Software


IOT meter


Wireless energy meter
Wireless energy meter

3-phase 4-wire (current connected via CT)

Wireless energy meter

3-phase 4-wire (current connected via CT)

Wireless energy meter

3-phase 3-wire (current connected via CT)

ADW300 3-phase 4-wire (current connected via PT and CT)

3-phase 4-wire (current connected via PT and CT)

ADW300 3-phase 3-wire (current connected via PT and CT)

3-phase 3-wire (current connected via PT and CT)


IOT meter
ADW300 network 2
IOT platform


Q:What's the biggest advantage of ADW300?

A:ADW300 has its built-in wireless communication module which allow it to realize 4G LTE, WiFi, NB-IoT, LoRa upstream communication without using extra IoT gateways. For the application scenarios when the meters can't be of centralized installation, ADW300 will usually be the best option for monitor 3-phase circuits that were far from each other.


Q:How should I deal with RS485 network communication malfunction?

A:First, check if the wiring of RS485 communication line was loosen or wired incorrectly.(like reversely wiring the A,B terminal).

      Next,inspect if the meter’s setting of address, baud rate, check bit was correct by using keypads on the meter.


Q:What if LoRa communication of meters malfunctioned?

A:First, use USB to RS485 serial converter to connect the meter with computer. Then use adjustment software to check if setting of meter is on consensus with the setting of master station.(setting of channel and spreading factor--SF)

     If setting remain the same, then it might be due to large interference of work site or the excessively far range between meter and host. In that case, it’s recommended to use chuck antenna or set a new master station nearby.


Q:What’s the difference between ADW300 and ADW300W

A:ADW300 has internal current transformers and can select compatible current transformer according to the site current to realized a secondary connection via CTs.

     ADW300W on the other hand, has external current transformers.(non-detachable or it will damage the meter) This kind of design extremely ease the wiring and installation if the work-site already has CTs.


Q:What do 3×57.7/100V,3×220/380V,3×380/660V,3×100V,3×380V,3×660V represent respectively?

A:The meter’s spec of 3*100V,3*57.7/100V is suitable for high voltage power system while pairing with PT(potential transformer or voltage transformer). Beside, 3*100V represent 3-phase 3-wire and 3*57.7/100V represent 3-phase 4-wire.

      The meter’s spec of 3*220/380V,3*380/660V,3*380V,3*660V is suitable for low voltage power system(directly connect with meter). Meanwhile,3*380V,3*660V represent 3-phase 3-wire and 3*220/380V,3*380/660V represent 3-phase 4-wire.

Other Question? Please contact us and we will reply you as soon as possible.

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  • Function Description
    Three-phase AC kWh, kVarh, Active Power, Reactive Power,Quadrant Reactive Power Energy, Current, Voltage, Voltage&Current Unbalance, Power Factor, Apparant Power, Frequency, Harmonic (2~31st&THD)
    Temperature Measurement:4-channel (A,B,C,N) Cable Temperature Monitoring;  Thermistor:NTC;  Range: -40~+99℃;  Accuracy:±2℃
    Residual Current Measurement: 1-channel Residual Current Monitoring (Need to be paired with Residual Current Transformers)
    RS485 Port with Modbus-RTU protocol -  1 start bit,8 data bit,1 stop bit,no parity;  Baud Rate 1200~38400 bps etc.Infrared Communication – Constant Baud Rate 1200 bps
    4G LTE – Normal Communicaiton Module Support: LTE-FDD: B1/B3/B5/B8;  LTE-TDD:B34/B38/B39/B40/B414G LTE – Global Communication Module Support: LTE-FDD:B1/B3/B5/B7/B8/B20/B28;  LTE-TDD:B38/B40/B41
    WiFi – Support 2.4GHz or 5GHz
    LCD Display and LED Indicator
    Keypads Programming: Setting of CT/PT Ratio, Communication, Phase Wiring and etc
    Adjustment Software: Setting of Data Upload Interval, WiFi configuration (Account&Password), Server Address, Port and etc 
    Alarm Function
    Undervoltage, Overvoltage, Undercurrent, Overcurrent, Underload, Overload, Communication Disconnection and etc
    I/O Function
    4-channel or 2-channel DI (Digital Input)2-channel DO (Digital Output)

    1. who are we?
    We are a top manufacturer with over 1500 employees, over 300 R&D engineers in China, with CE, ROHS, IEC, EAC, MID, UL, FCC Certificates, etc.
    Our Products: AC/DC electricity meters, current transformers, hall sensors, transducers, gateways, Motor protectors, wireless temperature monitoring, residual current relays, medical IT, IOT platform, other energy management systems, etc.

    As a top-level provider of electrical solution service, we can help you save energy, reduce cost, improve energy efficiency and safety, realize intelligent, visual and fine management of energy, and provide data services for energy management.

    2. What is your website?

    3. how can we guarantee quality?
    Always a pre-production sample before mass production;
    Always final Inspection before shipment;

    4.what can you buy from us?
    AC/DC Energy Meter, Hall Effect Sensor, Current Transformer, Current Transducer, Motor Protectors, Wireless Temperature Monitoring, Residual Current Relay, IOT Platform, etc.

    5. why should you buy from us not from other suppliers?
    147 computer software copyrights, 2 million meters, 1.5 million transformers, more than 100 design patents, 70 utility model patents.

    6. what services can we provide?
    Accepted Delivery Terms: FOB, CFR, CIF, EXW, DDU, Express Delivery, etc.
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