Specification BatteriesRequired : 1 Brand : shenruifa BulletPoint1 : Hold Many Fingerprints: Fingerprint scanner can hold 10 fingerprints, set fingerprints for multiple accounts, set fingerprints for each family member using a separate account, and automatically log in to their own accounts through fingerprints. BulletPoint2 : 360 Degree Auto Calibration: 360 degree auto calibration and recognition function, press the correctly registered finger at any angle on the module to complete the comparison. BulletPoint3 : Multifunctional: Multi functional design, fingerprint collection, fingerprint registration, fingerprint matching and fingerprint search can be done independently. BulletPoint4 : Wide Application: Mini fingerprint reader is used for fingerprint access control machine, fingerprint root search, fingerprint attendance machine, fingerprint storage cabinet, one touch automatic operation, fingerprint printing, fingerprint lock, fingerprint security. BulletPoint5 : Compact Structure: Computer fingerprint reader is compact, easy to carry and store, low power consumption, universal interface, high reliability and easy to operate. Color : #611 ConnectivityProtocol : Wi-Fi ConnectivityTechnology : Wireless ControllerType1 : Hand Control ControllerType2 : Mechanical knob ControlMethod : application ExternallyAssignedProductIdentifier : 8300018304674 ExternallyAssignedProductIdentifier1 : 0889044188017 ExternallyAssignedProductIdentifier2 : 889044188017 FinishType : Polished IncludedComponents : No ItemName : Fingerprint Key Reader with Auto Calibration, Recognition USB Fingerprint Reader for PC, Compact Structure, Multi Functional Design, Fingerprint Access Control Machine ItemPackageDimensions_Height : 11.3 centimeters ItemPackageDimensions_Length : 3 centimeters ItemPackageDimensions_Width : 9.1 centimeters ItemPackageQuantity : 1 ItemShape : Round ItemTypeKeyword : biometric-security-devices LockType : Keypad LockType1 : Keypad LockType2 : Biometric LockType3 : Combination Lock LowLightTechnology : Night Vision Manufacturer : shenruifa Material : Aluminum MemoryStorageCapacity : 1 GB ModelName : shenruifa3i9kn8ow7b ModelNumber : shenruifa3i9kn8ow7b NumberOfBoxes : 1 NumberOfChannels : 1 NumberOfItems : 1 NumberOfPieces : 2 PartNumber : shenruifa3i9kn8ow7b PowerSourceType : AC/DC ProductDescription : Specification: Item Type: Fingerprint Key Reader Material: ABS CPU: 144Hz main frequency, 1M Bits Flash Memory, 128KB SRAM Fingerprint Capture: Capacitive capture Fingerprint Image Size: 192 x 192 (pixel), 508 DPI Fingerprint Registration Capacity: 10 by default, expandable to 5000 False Acceptance Rate (FAR): Rejection Rate (FRR): Matching Method: 1:N and 1:1 matching Fingerprint Template Size: 570 bytes Byte Security Level Setting: Level 1 to Level 5 configurable, factory set value: Level 3 Processing Speed: Fingerprint Feature Extraction Time 1:N matching time (for 3000 full registrations) Communication Interface: UART, 3.3V-TTL level or USB communication Serial Communication Parameters: No Parity Parity = NONE, 1 stop bit Stop Bit = 1 No Flow Control = NONE Baud rate of 9600, 19200, 38400, 57600, 115200 (bps) Factory Setting: 115200bps Operating Voltage: vin voltage: DC3.3V±10% Operating Current: less than 30mA, peak less than 80mA (instantaneous current) when collecting fingerprints Sleeping Current: less than 10uA working environment Operating Temperature: -10℃-60℃