Features: 1. Ready to Install: Our DTU (Data Transfer Unit) is fully flashed and wired for direct installation into your own housing. Its compact design, with a width of only 25.4mm, allows for easy integration. 2. Stay Connected: the DTU is plug-and-play ready. You can effortlessly monitor your PV modules from your mobile phone or PC, ensuring you have real-time into their performance. 3. High-performance Components: The DTU features a powerful ESP32, known for its superior speed compared to the ESP 8266. Additionally, it is equipped with the stronger NRF24L01+ Antenne, complete with an integrated antenna. 4. Wide Compatibility: Specifically designed for use with for inverters, our DTU is compatible with models, including HM300, HM350, HM400, HM600, HM700, HM800, HM1200, HM1500, TSun 350, TSun 400, and TSun M800. Tips: The product may be updated constantly, The Actual Product May Have Slight Differences Or Color Differences the color and appearance may be changed, please don't mind. And take a consideration before place the order if you have request for color or appearance. Material: PCB colour: Black Package Contents: 1 x Development board module kit (square board wiring harness color random, Cannot be chosen the specific color.) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.