Products for USB Sensing and Control
1023_1 - PhidgetRFID - Discontinued

Product Features

Read EM4100 series RFID tags at a distance of up to 6cm with this reader.

Replaced by the 1024 - PhidgetRFID Read-Write.

Product Description

The PhidgetRFID reads RFID tags that are brought in close proximity to the reader and returns the tag identification number.

RFID (radio frequency identification) systems use data strings stored inside RFID tags or transponders) to uniquely identify people or objects when they are scanned by an RFID reader. These types of systems are found in many applications such as passport protection, animal identification, inventory control systems, and secure access control systems.

The PhidgetRFID (as well as the RFID tags sold by Phidgets) uses the EM4102 protocol. Any other tags that also use the EM4102 protocol can be used with the PhidgetRFID reader.

Because passive tags require a strong RF field to operate, their effective range is limited to an area in close proximity to the RFID reader. The distance over which the RFID tag is usable is affected by such things as the tag shape and size, materials being used in the area near the reader, and the orientation of the reader and tag in respect to each other and in their operating environment. The smaller a tag, the closer it must be to the reader to operate.

Related Products

If you need some tags with the RFID reader, have a look at the 2002 - PhidgetRFID Kit which comes with an assortment of tags.

Comes packaged with


Previous versions of the 1023

Product Specifications

RFID Reader

API Object NameRFID
Antenna Output Power Max10 μW
Antenna Resonant Frequency Min125 kHz
Antenna Resonant Frequency Max140 kHz
Read Rate33 ms
USB SpeedLow Speed

Electrical Properties

Available External Voltage (+5V)5 V DC
Available External Voltage (LED)5 V DC
Available External Current (+5V)400 mA
Available External Current (LED)16 mA
Output Impedance (LED)250 Ω
Current Consumption Min16 mA
Current Consumption Max100 mA

Physical Properties

Recommended Wire Size16 - 26 AWG
Operating Temperature Min0 °C
Operating Temperature Max70 °C

Digital Outputs

Number of Digital Outputs2
Digital Output Voltage Min0 V DC
Digital Output Voltage Max5 V DC