650nm 5mW Red Laser Cross Module HLM1230 CHT IIIa Adjustable Focus

A red cross able to be focused sharp over 2 metre distance. I mounted this in a custom made boss to align a marine prop shaft. Powered by a 5v USB supply rather than a battery, I had it on for continual periods of half an hour, over many hours of engine orientation adjustment, with no issues. Sharp cross on target, just over 2 metres, but imagine it can cast a beam over much longer distances.

Works well, bright