The 2195 Foldable Propellers for the Matrice 600 series are designed to ensure continued flight reliability when flying the Matrice 600 series at 2500 meters above sea level or higher.
Do not use the 2195 Foldable Propellers at altitudes lower than 2500 meters above sea level as this may cause motor damage.

DJI Matrice 600 DJI 2195 High-Altitude Foldable Propeller Part 58 

Compatibility: Matrice 600
Service altitude (Above sea level): 2500m - 4500m (8202.00' - 14763.60')
Diameter x Thread Pitch: 21 x 9.5" (533.40 x 241.30mm)
Weight (Single Propeller): 78g (2.75oz)

Includes:

1 x CCW propeller with propeller holder
1 x CW  propeller with propeller holder
1 x screw bag

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