125khz Handheld Rfid Reader Writer, Upgrade Smart Id Card Duplicator Cloner plastic box it's ideal for laboratory testing

it's ideal for laboratory testing

Useful for 10-position switch encoding

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125khz Handheld Rfid Reader Writer, Upgrade Smart Id Card Duplicator Cloner plastic box it's ideal for laboratory testingHOW TO USE? There are only two buttons "READ" and "WRITE" for easy operation. OPERATIONS: Firstly, remove the battery lid, then install 2 pieces of 1. 5V AAA batteries, and then push the lid back. Secondly, push the switch upward to turn on the device, then the red light is on, the green light and yellow light are flashing shortly, meanwhile the device beeps twice, that means the device is ready to work. If the lights aren't on, please re install the