Involvement:Expert (understands the inner workings) - Ownership:1 week to 1 month
These match up, in performance, with standard twenty-dollar retail lasers.
Good battery life.
Standard AAA batteries: no CR2, N, 23A, etc.
Very stable output. I don't notice mode-shifting during normal instructional use, but I wouldn't use them for long-duty-cycle service.
They won't stand up to abuse, but regular use (I teach in a medical school) is fine.
They're a red laser pointer. Do you need a red laser pointer or ten?
They're good to have around. Toss them in various desk and junk drawers around your house and office so you'll always have one handy.
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