Yes you can see the powerful green beam during the night.
Checked out on the USA websites, cost about USD70+. I
happened to have one, intent to sell at SGD40/-.
Specs:
Silver Colour, Musculine Pen Shaped
Ultra Powerful Green Laser beam, 5000km distance (Able to
see whole length of green laser beam during the night)
Also known as the "Star Pen" as the beam is able to
point at an exact spot in the sky to pin-point any star, exact to
the spot.
Good for signalling. Avoid pointing at aeroplanes to
distract navigation.
Note:
The green beam is ultra-strong and travels very
far. Don't be surprised the beam can reach someone's house
located a few streets away. I stress, not blocks, but
streets away!
Check out my profile or PM me if
interested!