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About E3D-Online E3D PT100 Amplifier Board
This amplifier will allow a sensing range of up to and beyond 400C, the maximum safe working temperature of an all-metal hotend. Truly amazing. Extrude materials that require a higher temperature as well as get a more accurate temperature reading. This board is derived from the circuit design from the Ultimainboard V2 controller board, but with enhanced filtering for robust and accurate temperature measurement. Because of this, you can simply select temperature sensor '20' in the marlin firmware to get correct calibration values.
