Home Dual-mode NRF/CMT DTU for Hoymiles HM 300-1500, HMS 300-2000 and HMT 1800-2250 with Display

Dual-mode NRF/CMT DTU for Hoymiles HM 300-1500, HMS 300-2000 and HMT 1800-2250 with Display

Sale price €39,00

📦 Location of the warehouse: Munich

3 in stock

🚚 We will ship your order within 24 hours after the order is taken.

- Pre-Ordering: If an item is unavailable, you can pre-order it. We'll dispatch once stock is replenished, usually within 10 working days.

- Express Shipping: Need it faster? Contact us via email or through our live chat support, and we'll arrange expedited delivery for you.

Add to Wishlist Add to Compare

Free Shipping from 30€ in Germany, 50€ in the EU!

- EU Countries Delivery Time: 4~8 working days.

- Other Countries Delivery Time: 2~2.5 weeks.

Ask a question

Guarantee & Return Policy

Effective Date: March 27, 2025

At OpenELAB, we are committed to providing accurate product descriptions and delivering high-quality products. If you experience any issues with your purchase, please notify us within 60 days of the shipment date.

  

1. Warranty Disclaimer

Unless explicitly stated in a specific agreement or purchase order, OpenELAB makes no warranties—express or implied—regarding the fitness, suitability, or merchantability of any product for a particular purpose or special use.

  

2. Warranty Policy

Warranty Period

The standard warranty period for products sold by OpenELAB is 12 months from the date of delivery.

Under this warranty, OpenELAB will make a reasonable effort to repair or replace products free of charge if defects are due to issues with raw materials, design, or manufacturing.

If the defect qualifies under this policy but falls outside the covered scope, reasonable charges may apply for repair or replacement.

After the warranty period, support may still be available at a reasonable fee.

  

Warranty Exclusions

The warranty does not apply in the following cases:

  • The product is beyond the 12-month warranty period.
  • Damage due to misuse, improper maintenance or storage, or failure to follow the user guide or manual.
  • Issues caused by Force Majeure events (e.g., natural disasters, war, legal changes, etc.).
  • Unauthorized repair attempts by the customer.
  • The product is not defective but has been opened and is non-returnable by policy.

   

3. Returns & Refunds

If you're not satisfied with your purchase, you may be eligible for a return or exchange:

  • Return for Refund: Within 15 days of receipt (unopened).
  • Return for Replacement: Within 30 days of receipt (damaged or defective).
  • Exchange Window: Up to 30 days from receipt.

Please email us at info@openelab.io for a return authorization before sending anything back.

  

Return Conditions

  • Items must be in original, clean, and mint condition with packaging intact.
  • Returns of damaged, used, scratched, modified, or programmed items will not be accepted.
  • Include the receipt, a brief note with your name, order number, and reason for return.

  

Shipping & Fees

  • Customers are responsible for return shipping to our warehouses in Europe, the US, or China.
  • Refunds may be subject to additional shipping fees unless the return is due to our error.
  • A flat €8 shipping fee will be deducted for returned items that originally qualified for free shipping.

   

Payment Platform Fees

For refunds processed through third-party platforms such as PayPal or Braintree, a standard 3.5% service fee may be deducted to cover payment processing costs.
Share

Free shipping for you

Free Shipping from 30€ in Germany, 50€ in the EU!

Trustpilot rating: 4.4/5.0

Thank you for your support - rate us on Trustpilot!

Visa
PayPal
Mastercard
American Express
Shop Pay
Dual-mode NRF/CMT DTU for Hoymiles HM 300-1500, HMS 300-2000 and HMT 1800-2250 with Display

Dual-mode NRF/CMT DTU for Hoymiles HM 300-1500, HMS 300-2000 and HMT 1800-2250 with Display

€39,00
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

Set up your device:

  1. Power on the DTU – Once connected to power, it will generate a WiFi network starting with "openDTU".
  2. Connect to the WiFi – Select the "openDTU" network and use the password: openDTU42.
  3. Log in – Open a browser and go to 192.168.4.1. Use the following credentials:
  • Username: admin
  • Password: openDTU42
  1. Configure Home WiFi – In the settings, enter your home WiFi name and password.
  2. Find the Device IP – After setup, the OpenDTU screen will display the new IP address assigned by your router.

 

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

Effective Date: March 27, 2025

At OpenELAB, we are committed to providing accurate product descriptions and delivering high-quality products. If you experience any issues with your purchase, please notify us within 60 days of the shipment date.

  

1. Warranty Disclaimer

Unless explicitly stated in a specific agreement or purchase order, OpenELAB makes no warranties—express or implied—regarding the fitness, suitability, or merchantability of any product for a particular purpose or special use.

  

2. Warranty Policy

Warranty Period

The standard warranty period for products sold by OpenELAB is 12 months from the date of delivery.

Under this warranty, OpenELAB will make a reasonable effort to repair or replace products free of charge if defects are due to issues with raw materials, design, or manufacturing.

If the defect qualifies under this policy but falls outside the covered scope, reasonable charges may apply for repair or replacement.

After the warranty period, support may still be available at a reasonable fee.

  

Warranty Exclusions

The warranty does not apply in the following cases:

  • The product is beyond the 12-month warranty period.
  • Damage due to misuse, improper maintenance or storage, or failure to follow the user guide or manual.
  • Issues caused by Force Majeure events (e.g., natural disasters, war, legal changes, etc.).
  • Unauthorized repair attempts by the customer.
  • The product is not defective but has been opened and is non-returnable by policy.

   

3. Returns & Refunds

If you're not satisfied with your purchase, you may be eligible for a return or exchange:

  • Return for Refund: Within 15 days of receipt (unopened).
  • Return for Replacement: Within 30 days of receipt (damaged or defective).
  • Exchange Window: Up to 30 days from receipt.

Please email us at info@openelab.io for a return authorization before sending anything back.

  

Return Conditions

  • Items must be in original, clean, and mint condition with packaging intact.
  • Returns of damaged, used, scratched, modified, or programmed items will not be accepted.
  • Include the receipt, a brief note with your name, order number, and reason for return.

  

Shipping & Fees

  • Customers are responsible for return shipping to our warehouses in Europe, the US, or China.
  • Refunds may be subject to additional shipping fees unless the return is due to our error.
  • A flat €8 shipping fee will be deducted for returned items that originally qualified for free shipping.

   

Payment Platform Fees

For refunds processed through third-party platforms such as PayPal or Braintree, a standard 3.5% service fee may be deducted to cover payment processing costs.