The Dual-mode NRF/CMT DTU module comes with pre-installed latest version of OpenDTU firmware. The DTU module is designed for easy management and optimization of the HM, HMS, and HMT series of the Hoymiles inverters simultaneously, except the inverters with a “W” in the model number. Up to ten inverters can be connected.

Built-in NRF24L01+ AND CMT2300A IoT modules
Display and adjustment of current inverter limits
Switching inverter on and off
Support for multiple inverters (up to 10 inverters)
Supports MQTT with TLS encryption
Integration with Home Assistant MQTT auto-discovery
User-friendly web application with real-time data visualization
Firmware updates via web interface
Support for different time zones
Multi-language web interface (English, German, French)
Prometheus API extension (/api/prometheus/metrics)

After connecting a power supply (5V-2A，€ 4,99) via a USB-A to USB-C cable(€ 2,99 ), the DTU is recognized as an access point (AP). After entering the IP address and password, the DTU can be set up. Instructions are provided. If you need help with the setup, please contact us via email or whatsapp.

The 5V-2A power supply and the USB-A to USB-C cable are not included in the standard package to protect the environment, and they can be ordered as accessories.

Compatible Inverters Models using NRF24L01+ module (included already in this product):

Hoymiles HM-300-1T
Hoymiles HM-350-1T
Hoymiles HM-400-1T
Hoymiles HM-600-2T
Hoymiles HM-700-2T
Hoymiles HM-800-2T
Hoymiles HM-1000-4T
Hoymiles HM-1200-4T
Hoymiles HM-1500-4T
Solenso SOL-H350
Solenso SOL-H400
Solenso SOL-H800
TSUN TSOL-M350
TSUN TSOL-M800
TSUN TSOL-M1600

Compatible Inverters Models using CMT2300A module (included already in this product):

Hoymiles HMS-300-1T
Hoymiles HMS-350-1T
Hoymiles HMS-400-1T
Hoymiles HMS-450-1T
Hoymiles HMS-500-1T
Hoymiles HMS-600-2T
Hoymiles HMS-700-2T
Hoymiles HMS-800-2T
Hoymiles HMS-900-2T
Hoymiles HMS-1000-2T
Hoymiles HMS-1600-4T
Hoymiles HMS-1800-4T
Hoymiles HMS-2000-4T
Hoymiles HMT-1600-4T
Hoymiles HMT-1800-4T
Hoymiles HMT-2000-4T
Hoymiles HMT-1800-6T
Hoymiles HMT-2250-6T

Still have questions? We are happy to help! Please simply write to us via email or whatsapp.

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