



Marstek CT002 3-Phase Smart Meter
- Designed for MARSTEK batteries to increase efficiency and enable zero-feed-in PV.
- Real-time power monitoring, measurement accuracy of 1%
- DIN installation, professional electrician required
- Wi-Fi and Bluetooth connectivity, intelligent app, clear data at a glance
- 10-year guarantee, absolute peace of mind
We deliver directly to your home free of charge.*
Delivery usually takes 7-14 working days*, so just sit back and relax.
*More information can be found in the shipping conditions .
We guarantee a 14-day return policy. This means that, regardless of the reason, you can cancel your order within 14 days. As soon as we receive your return in its undamaged original packaging, we will process your refund immediately.
Please note that any costs incurred during a return or refund – such as PayPal's 2% transaction fee and return shipping costs – will be retained as a fee. This fee covers payment and processing costs.
*For more information on the conditions for a successful refund process, please see our refund policy .
Marstek.de offers a 10-year warranty. Should the product fail within this period due to material or manufacturing defects, we will provide a replacement. The replacement product will be covered for the remaining warranty period of the original item.
To make a warranty claim, please contact our customer service at: support@marstekenergy.com .
*Further details can be found in our warranty conditions.
We're happy to help! If you have any questions or suggestions, please write to us at support@marstek.de – our team will take care of your request immediately.




Wi-Fi and Bluetooth connectivity
Supports both Wi-Fi and Bluetooth connections.


| Electrical parameters | |
|---|---|
| Power supply (AC) | 100–260V, 50/60Hz |
| Deviation of the supply voltage | ±10% |
| Overvoltage level (VA VB VC VN) | CAT II, 3×260VAC |
| Power consumption of the device | < 2W |
| Measurement specifications (per phase) | |
| Voltage measurement (RMS) | 100–260V |
| Frequency of voltage measurement | 50Hz / 60Hz |
| Voltage measurement accuracy | ±1% |
| Maximum current measurement (Single-Phase) | 100A |
| Current measurement accuracy | ±1% (5–100A) |
| Device info | |
| Wi-Fi protocol | 802.11b/g/n (20) |
| RF-Band | 2.4GHz |
| Bluetooth | 5.2 |
| Operating temperature | -20°C ~ 40°C |
| Dimensions | 65.4 × 26.5 × 83 mm |
| Weight | 0.2kg |
| Material of the housing | Plastic |
| color of the case | Black |
FAQ
Is the MARSTEK CT002 compatible with the MARSTEK VENUS/JUPITER/SATURN?
How can I connect the MARSTEK CT002 with the MARSTEK energy storage system to enable real-time monitoring and data transmission?
Is the installation and configuration process of the MARSTEK CT002 complicated? Do I need professional support?
Does the MARSTEK CT002 support firmware updates?
Will the data collected by MARSTEK CT002 endanger my privacy?
The MARSTEK CT002 smart meter strictly adheres to Marstek Energy's privacy policy when collecting and transmitting data to ensure the security of your personal information. All collected data is used solely for the functionality of the product and the optimization of the service and not for unauthorized purposes.
If you have concerns about privacy or need further information, please feel free to contact our customer service team at any time. We are happy to assist you.
Can the MARSTEK CT002 Smart Meter help balance the three-phase load in my home?
The MARSTEK CT002 can monitor the three-phase current in your home in real-time and control the energy storage system to supply additional energy to each phase to balance the three-phase load. However, if the load of one phase is too high, the additional energy from the storage system may not be sufficient to meet the overload demand. We recommend assessing the load of each phase and distributing household appliances accordingly to avoid overloading. To solve the problem, you can also consider increasing the storage capacity or implementing more advanced energy management strategies to ensure a balanced three-phase load in your household.




