Use Google Translate’s document translation feature. Upload the PDF, and it will generate an English version while preserving diagrams. For quick reference, use the Google Lens app on your phone to translate specific paragraphs in real-time.
Inspect the physical QY42P unit. Many manufacturers now print a directly on the housing. Scanning that with your smartphone will often lead to a specific landing page where the latest manual PDF is hosted. qy42p manual pdf