Specification Brand : HiLetgo BulletPoint1 : Analog Current Meter Module. Transformer can only sense AC BulletPoint2 : This electricity sensor is based on TA12-100 current transformer, which can transform AC signals of large current into small amplitude signals. BulletPoint3 : 3-wire electronic block interface, input 5V - GND. S pin is the output analog voltage value. BulletPoint4 : You can use jumpers to select the parallel output of the output to adjust the range of analog values that are output. BulletPoint5 : On-board 3P and 4P connecting interface for current signal output can be easily connected with your MCU development board Color : Blue ConnectivityProtocol : Infrared ConnectorType : Clamp ControlMethod : remote CurrentRating : 5 amps CustomerPackageType : Standard Packaging ExternallyAssignedProductIdentifier1 : 797698769868 ExternallyAssignedProductIdentifier2 : 0797698769868 ExternallyAssignedProductIdentifier3 : 00700724295538 IncludedComponents : Touch Sensor Circuit Board InternationalProtectionRating : IP54 ItemName : HiLetgo Analog Current Meter Sensor Module AC 0~5A Ammeter Sensor Board Based on TA12-100 for Arduino ItemPackageDimensions_Height : 9.5 centimeters ItemPackageDimensions_Length : 2 centimeters ItemPackageDimensions_Width : 5.8 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : sensor-blocks Manufacturer : HiLetgo Material : Copper MaximumSupplyVoltage : 5 volts MeasuringRange : up to 3 centimeters ModelNumber : 3-01-0056 MountingType : Surface Mount NumberOfItems : 1 NumberOfPositions : 4 OperationMode : Manual OutputType : Physical PartNumber : 3-01-0056 ProductDescription : Specification: Interface: 3PIN Power Supply: 5V Size: 30x 24x 1.6mm Weight: 25g