DA-Series
The feature of beam shape : Round , But have diffractive circle.
Output aperture : Ø 9mm or Ø 8mm
Beam divergence : 0.1-0.2mrad
Focus adjustable : No
Size : Ø16 x 58 or Ø11 x 60mm
Feature : Our DA series laser modules using in long distance applications,Even 300m,The spot size of this
lasers is follows(Ø9mm output aperture, approximation):

Ø9mm@ 25mm Ø9mm@ 50mm Ø9mm@ 100mm
Ø8mm@ 500mm Ø7mm@ 1m Ø6mm@ 2.5m
Ø4.5mm@ 5m Ø4mm@ 7.5m Ø4mm@ 10m
Ø7mm@ 20m Ø9.5mm@ 40m Ø15mm@ 50m
Ø25mm@ 100m Ø35mm@ 150m Ø45mm@ 200m
Ø55mm@ 250m Ø65mm@ 300m