USB Charging Fan Portable Retractable Mini Fan$12.96
DIY Kit 51 Single Chip Microcomputer Homemade Digital Tube Calculator
$3.79
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Details
Product information:
Project No.: HU-054
Installation method: electric soldering iron welding tools
Application Field: diy welding practice
Power supply method: USB powered 5V or 3V button battery powered (note that USB and button battery cannot be powered simultaneously, otherwise the button battery will be damaged)
Working voltage:> 2.8V
Working current: Working state: 12mA, sleep state:< 1mA
PCB size: 113x78mm, measured manually with an error of 1-2mm
Calculator x1set
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