Welcome to our store! 1. Data Logging: This ESP 12F WiFi module can be installed on card readers for Wiegand data logging. 2. Easy to Use: This universal data logger can be portable if a battery and card reader are added. Add a desktop power supply to test hardware. 3. Simple Identification: The main target audience for this ESP flasher module is 26 to 37-bit Host Interface Device cards. For known card types, both binary and hexadecimal data are displayed directly in the log file for easy card identification and even if a clone of a card may be needed. 4. WiFi Capability: This ESP12F serial WiFi module was primarily made for data logging and although there is a broadcast mode. Access to the log files and various settings is provided via a web-based interface. The device has WiFi capabilities and can be set up to create its own access point or set up to connect to an existing network. 5. Widely Used: This ESP data logger can log credentials for access control systems or almost any device that uses a Wiegand interface, such as card readers, keypads, magnetic stripe systems, and even some biometric readers. Item Type: ESP 12F WiFi Module Material: Printed Circuit Board Color: Green 1 x ESP 12F WiFi Module If you receive your item and find any product issues, such as damage or incorrect quantity, please contact us immediately. We will do our best to provide you with satisfactory customer service.