Its WDD35D4 1K OHM 2W Continues potentiometer Angle Sensor Displacement Senso used to get position of any object in industrial evnoirment and electrical noisy envoirement. 

Specifications:

1. Outer diameter: 36.5mm, Shaft: 6mm.
2. Standard resistance: 1/2/5/10K
3. Resistance Tolerance: ± 15%
4. Independent Linearity: ± 0.5%, ± 0.1%
5. Theoretical electrical angle: 345 ° ± 2 °
6. Resolution: Unlimited
7. Power: 2W (70 degree)
8. Temperature Coefficient of Resistance (ppm / degree): <± 400
9. Operating temperature range: -55 degree -125 degree
10. Mechanical angle: 360 ° (continuous)

Package Includes:

•    1x WDD35D4 1K Resistor