1Combination unlocking, double insurance, secret opening door without leaving traces. 2Fingerprint and password unlocking, remove the cumbersome operation, and easily press it, even for the elderly and children. 3The longest 32-bit virtual password input prevents people from stealing the password. 4Quickly identify touch fingerprint, up to 600DPI, less than or equal to 0.1 second scan response time. 5Unlocking reaction speed is less than 1 second, self-learning algorithm, the more you use it, the better. Features: Combination unlocking, double insurance, secret opening door without leaving traces. Fingerprint and password unlocking, remove the cumbersome operation, and easily press it, even for the elderly and children. The longest 32-bit virtual password input prevents people from stealing the password. Quickly identify touch fingerprint, up to 600DPI, less than or equal to 0.1 second scan response time. Unlocking reaction speed is less than 1 second, self-learning algorithm, the more you use it, the better. Large touch button, unlock mode can be set, independent mode or combination mode for options. High-strength zinc alloy, vacuum-plated surface treatment, dazzling metal texture, and impact resistance, high temperature resistance, corrosion resistance, waterproof and dustproof. Sound prompt: If it is an invalid password, the buzzer will emit three short beeps, and the blue backlight light will immediately extinguish. 7 consecutive times enter the wrong password, the keyboard will be locked for 2 minutes. Low voltage alarm, if the voltage is insufficient, there is a low voltage alarm. If the voltage is low, the fingerprint unlocking mode is invalid.Only the management user can unlock. Emergency power supply, battery power, external emergency power supply. Using 4 * alkaline batteries, low power consumption design, long-lasting battery life-span. ABS fire retardant material is used inside the machine, which is durable and resistant to high temperature. Built-in mechanical lock cylinder, the door lock has an automatic rebound function, the fingerprint opens the door, and the door lock automatically pops open. Specification: Condition: 100% Material: Zinc alloy Color: Gold, Silver (Optional) Power supply: 6V (4 * 2A 1.5V alkaline battery) (batteries are not included) Data Storage: Permanent Storage Unlocking Modes: Fingerprint, Digital Password Static power consumption: