Specification AgeRangeDescription : Kid Brand : Pololu BulletPoint1 : Linear Encoder Sensor for Roland RS-540 / RS-640 / VP-540 / VP-300 BulletPoint2 : Printer Compatibility: Roland RS-540 / RS-640 / VP-540 / VP-300 BulletPoint3 : High Quality with better price BulletPoint4 : Encoder sensor strip for Roland BulletPoint5 : Brand new EducationalObjective : Science ExternallyAssignedProductIdentifier1 : 0814358019931 ExternallyAssignedProductIdentifier2 : 6252501671218 ExternallyAssignedProductIdentifier3 : 814358019931 ItemName : Pololu Magnetic Encoder Pair Kit for 20D mm Metal Gearmotors, 20 CPR, 2.7-18V (Item: 3499) ItemPackageDimensions_Height : 8.636 centimeters ItemPackageDimensions_Length : 0.508 centimeters ItemPackageDimensions_Width : 7.62 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : switch-encoders Manufacturer : Pololu Material : Metal ModelNumber : Asus Zenfone Max Pro Mi NumberOfItems : 1 OperationMode : Manual PartNumber : 3499 PowerSourceType : Corded Electric ProductDescription : Add quadrature encoders to your 20D mm metal gearmotors (extended back shaft version required) with this kit that uses a magnetic disc and Hall effect sensors to provide 20 counts per revolution of the motor shaft. The sensors operate from 2.7 V to 18 V and provide digital outputs that can be connected directly to a microcontroller or other digital circuit. This module is compatible with all of the dual-shaft 20D mm metal gearmotors we carry. ProductSiteLaunchDate : 2018-05-31T15:31:51.657Z Style : Digital TargetGender : unisex UnspscCode : 44103100