Product Review

Introduction
RFID module
The original Philips MFRC522 chip design circuit card reader is easy to use and low cost, and applies to the user equipment development, the reader and the development of advanced applications, and the need for the user RF card terminal design/production. This module can be directly loaded into various reader modules. It utilizes a voltage of 3.3V, through the SPI interface with simply a few wires. Directly connected with a CPU motherboard, the module can work in a stable and reliable manner as a distance card reader.
For more information,refer to https://www.sunfounder.com/wiki/index.php?title=Mifare_RC522_Module_RFID_Reader

Specifications
Operating current: 13-26mA/DC 3.3V
Idle current: 10-13mA/ DC 3.3V
Sleep current: <80uA
Peak current: <30mA
Operating frequency: 13.56MHz
Supported card types: Mifare1 S50, Mifare1 S70, MIFARE Ultralight, Mifare Pro, and MIFARE DESFire
Physical features: size: 40mm×60mm
Ambient operating temperature: - 20-80 degrees centigrade
Ambient storage temperature: - 40-85 degrees centigrade
Ambient relative humidity: 5%-95%

Package included
1 * RFID RC522 module
1 * RFID key fob
1 * RFID Card