694-3-R1K by BI Design and production,in Ehang Electronics Technology Limited. Spot sales,And can pass Ehang Electronics Technology Limited. Purchasing。694-3-R1K Price reference $ 0。694-3-R1K - 。You can download Chinese information、Pin map、DatasheetData sheet function specification,In the information 694-3-R1K Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial