The Skylotec Mark 1 Tactical descender device is a rebranded version of the Anthron DSD Pro descender as Anthron were taken over by Skylotec.

 

The Skylotec Mark 1 Tactical is a tactical variant of the popular Anthron DSD Plus/Skylotec  Mark 1 Plus and was specifically designed for intervention and tactical purposes.

 

Just like the DSD Plus/Mark 1Plus, the Mark 1 Tactical may be controlled with only one hand. It features an incredibly strong yet non-damaging grip on the rope. 

 

Start of slippage with a 11 mm rope is at unbelievable 10 kN and still retains solid 6 kN with 9 mm.

 

The transition between stop and go is a bit smoother to avoid unpleasant jerks during the starting process.

 

The device autolocks - once the handle is released the device blocks on the rope instantly. 

 

The downside of these changes is a slightly smaller range of functionality compared to Mark 1 Plus.