Original Prusa IR Filament Sensor


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SKU: 1611374
  1. Product: IR Filament Sensor
  2. Brand: Original Prusa
  3. Length: 20mm
  4. Width: 7mm
  5. Height: 5mm
  6. Weight: 1 g


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Brand: Prusa
Category: Prusa 3D Printer Parts

This product is the replacement IR filament sensor. It is ONLY compatible with the MK2.5S and MK3S/MK3S+. It is NOT compatible with the MK2.5 and MK3.

The Original Prusa IR Filament Sensor is an essential accessory for Prusa 3D printers. It features an infrared sensor that detects filament movement and provides real-time monitoring during printing. The sensor helps prevent print failures caused by filament runouts or tangles, automatically pausing the print and alerting the user to reload or fix the filament. With its reliable detection and user-friendly design, the Original Prusa IR Filament Sensor ensures uninterrupted printing and improves the overall printing experience.


  1. Infrared sensor for detecting filament movement.
  2. Real-time monitoring of filament during printing.
  3. Prevents print failures caused by filament runout or tangles.
  4. Automatically pauses the print and alerts the user when filament issues occur.
  5. User-friendly design for easy installation and operation.
  6. Ensures uninterrupted printing by detecting and addressing filament-related issues.
  7. Compatible with Prusa 3D printers for seamless integration.
  8. Enhances the overall printing experience by improving reliability and reducing the risk of failed prints.

Package Includes:

1 x IR Filament Sensor

1 x The IR filament sensor PCB color may vary (Red, Black, etc.) All properties remain the same color regardless.

SKU: 1611374 Category:
Item Type:





Metal, PCB



Length (mm):


Weight (g):


Shipping Weight 0.001 kg
Shipping Dimensions 5 × 5 × 1 cm
1 Month Warranty

This item is covered with a standard warranty of 1 month from the time of delivery against manufacturing defects only. This warranty is given for the benefit of Robu customers from any kind of manufacturing defects. Replacement will be done against manufacturing defects.

What voids warranty:

If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.

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Country Of Origin: Czech Republic