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芯片型號: TM DS1990A-F5 規範: 16.25×17.35mm Weight: 2.2g Material: Stainless steel Operating temperature: -40℃〜+ 85℃
芯片型號: TM DS1990A-F5 Shell material: ABS Shell size: 49×30mm Weight: 11.2 grams Environmental indicators: -30℃〜+ 80℃