Pre-order €49 until 9 Nov, then €59 · ships on 10 November 2026

Home / Installing MoniWatt for Suntaic

Installing MoniWatt for Suntaic

Ten minutes, nothing to open, nothing to reconfigure.

Before starting

1. Two ports, one for us

Under the inverter you will find two communication ports: RS485, which talks to the lithium battery, and RS232. Leave RS485 connected to the battery. MoniWatt for Suntaic uses RS232.

2. Connect the box

Plug the supplied cable into the RS232 port and into the box. Connect the box to USB-C power. The screen lights up.

Everything happens on the low-voltage communication port. Never open the inverter.

3. Join your Wi-Fi

From your phone, join the Wi-Fi network created by the box. The setup page opens: choose your home network and set a password for the dashboard.

4. Compare with the inverter screen

Open http://moniwatt.local and scroll through the inverter screen at the same time. Battery voltage, PV power and output should match.

A holiday home?

Switch on the remote dashboard in the settings and link the box to your account. You will be able to check the installation from anywhere and receive an e-mail if the box stops reporting, for example after a long power cut.

If no values appear

Check your Suntaic system from anywhere

Order MoniWatt for Suntaic. Ships on 10 November 2026, tested on a Suntaic inverter.

Pre-order for €49Pre-order price · €59 from 10 Nov · ships on 10 November 2026 · free cancellation until dispatch