Fingerprint Attendance Machine with 1000 Fingerprints and 100,000 Records. The film-free fingerprint sensor utilizes intelligent recognition for both dry and wet fingerprints, along with 360° rapid recognition, ensuring more efficient attendance tracking and a longer lifespan. Intimate reminders allow you to view check-in status at a glance. Recording Capacity: With a memory capacity of 100,000 records, it's suitable for businesses of all sizes. Dimensions: 145(L) × 115(W) × 40(H) Mm. Power: 3.7V. Power Supply: DC 5V/1A. Ambient Temperature: 0℃ ~ +45℃. Ambient Humidity: 20%~80% (Rh). Product Features: 1. High Compatibility: The attendance machine supports U-disk downloads, covering 99.7% of U-disks on the market. 2. Matching Power Adapter: Features safety certification, drop resistance, multi-layer composite protection mechanism, and charging that won't damage the machine. Package Contents: 1 x Attendance Machine Kit. Only the above package content is included; other items are not. Note: Light reflections and different displays may cause the color of the item in the picture to differ slightly from the actual object. The allowed measurement error is +/- 1-3 cm.