Identifiers:
The lower, longer wires with the red stripes are the Heater connection. The sensor wires vary in colour depending on the sensor type. The ID Label also provides identifying information such as sensor type, power and voltage.
Standard HeaterCore:
With a blue Sensor Wire. Using a Semitec 104NT-4-R025H42G thermistor.
Early versions of the standard HeaterCore have white sensor wires.
Revo CR HeaterCore:
With a yellow Sensor Wire. Using a Creality-specific thermistor.
