Bushnell Nitro 1800 Beam Divergence?

[Rivisondali]

Does anyone have an idea what the beam divergence for the Bushnell Nitro 1800 rangefinder is? I've looked everywhere online and can't seem to find it. Phoned up Bushnell and they couldnt give me an answer.

 

[Rivisondali]

Tried measuring the divergence a nearby traffic sign and to my best estimate the beam divergence is about 4*1.3 mrads