: Use setting A13 to adjust the voltage reading by for accuracy.

If you're unable to find the manual online, consider contacting Tomzn directly. Look for a "Contact Us" page on their website, which might include an email address, phone number, or physical address where you can request the manual.

💡 : This device is designed for 35mm DIN rail mounting. Ensure power enters from the top (Live + Neutral) as reversed wiring can damage the unit. If you'd like to configure specific settings :