RFID Guide
How does RFID work? Learn how frequency, protocol, and chipset impacts reader compatibility.
This is a blue RFID key fob made from colorful hard plastic. The tag contains a unique ID that can be read by a Phidgets RFID reader.
Note: The number stamped on the tag is not the tag string, it is a serial number.
This tag uses the EM4012 protocol (part of the EM4100 series) and can be read by any of the RFID readers in the table below. If you're using a different RFID reader, make sure it's designed to work at 125 kHz and supports this tag's protocol.
Product | RFID Reader | |||
---|---|---|---|---|
Part Number | Price | Antenna Resonant Frequency Min | Antenna Resonant Frequency Max | Supported Protocols |
PhidgetRFID Read-Write
|
$60.00 | 125 kHz | 150 kHz | EM4100, ISO11785 FDX-B, PhidgetTag |
Tag Properties | |
---|---|
Supported Protocols | EM4102 |
Tag Characteristics | Passive, Read-Only |
Transmission Frequency | 125 kHz |
Encoding Method | Manchester |
Message Length | 64 bit |
Unique ID Length | 40 bit |
Typical Read/Write Distance (with 1024 - PhidgetRFID R-W) |
80 mm |
Physical Properties | |
Material | ABS Plastic |
Color | Blue |
Hole Diameter | 3 mm |
Thickness | 6.8 mm |
Length | 34.6 mm |
Width | 27.5 mm |
Weight | 4.5 g |
IP Rating | IP68 |
Customs Information | |
Canadian HS Export Code | 8543.90.90 |
American HTS Import Code | 8543.90.88.85 |
Country of Origin | CN (China) |
Product | Tag Properties | |||
---|---|---|---|---|
Part Number | Price | Supported Protocols | Tag Characteristics | Typical Read/Write Distance (with 1024 - PhidgetRFID R-W) |
RFID Tag - Credit Card Sized
|
$1.10 | EM4102 | Passive, Read-Only | 110 mm |
Writable RFID Tag - PVC Card
|
$1.50 | EM4100, ISO11785 FDX-B, ASCII | Passive, Read/Write | 120 mm |
RFID Tag - Watch with Adjustable Strap
|
$2.75 | EM4102 | Passive, Read-Only | 80 mm |
RFID Tag - Watch-like with Elastic Strap
|
$2.00 | EM4102 | Passive, Read-Only | 80 mm |
Writable RFID Tag - Watch with Adjustable Strap
|
$3.00 | EM4100, ISO11785 FDX-B, ASCII | Passive, Read/Write | 100 mm |
RFID Tag - Blue Key Fob
|
$1.30 | EM4102 | Passive, Read-Only | 80 mm |
RFID Tag - ABS Key Fob Blue
|
$1.30 | EM4102 | Passive, Read-Only | 80 mm |
RFID Tag - Bird Leg Ring Black
|
$0.80 | EM4102 | Passive, Read-Only | 50 mm |
Writable RFID Tag - ABS Key Fob
|
$1.20 | EM4100, ISO11785 FDX-B, ASCII | Passive, Read/Write | 100 mm |
RFID Tag - 18mm PVC Disc
|
$1.00 | EM4102 | Passive, Read-Only | 50 mm |
RFID Tag - 30mm Disc Black
|
$1.30 | EM4102 | Passive, Read-Only | 100 mm |
RFID Tag - 5cm Metal Mount
|
$2.50 | EM4102 | Passive, Read-Only | 80 mm |
RFID Tag - Clothing Button
|
$2.00 | EM4102 | Passive, Read-Only | 60 mm |
RFID Tag - PVC 30mm Disc White
|
$1.00 | EM4102 | Passive, Read-Only | 80 mm |
RFID Tag - Threaded Black
|
$0.80 | EM4102 | Passive, Read-Only | 70 mm |
Writable RFID Tag - ABS Disc 30mm
|
$2.30 | EM4100, ISO11785 FDX-B, ASCII | Passive, Read/Write | 100 mm |
Writable RFID Tag - PVC Disc 25mm
|
$1.50 | EM4100, ISO11785 FDX-B, ASCII | Passive, Read/Write | 100 mm |
Writable RFID Tag - PVC Disc 30mm
|
$1.50 | EM4100, ISO11785 FDX-B, ASCII | Passive, Read/Write | 100 mm |