Version	Language	Size	Uploaded
Tech Notes
Tech Note: Polarity Conventions updated: ต.ค. 2019			55 กิโลไบต์	ต.ค. 2019
Owner's Manuals
2427H/J Information updated: ก.ค. 2019			715 กิโลไบต์	ก.ค. 2019

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