This laser diode module projects a red crosshair. It is designed for 4.5V operation (3 batteries). Red wire = positive, black wire = negative.
The lable on the module states this to be a class IIb laser (< 5 mW), wavelength 630-660 nm.
I have no more data, and I do not know whether this module has been used or what the remaining life time will be.
Be careful with this item!
This is a surplus product. It was obtained from a surplus store, from an inventory or from any other secondary source. You can expect this product to be in good working condition, but it can show signs of being handled, shipped, repackaged etc. The supply of a surplus article can suddenly run out, or the price can change. Get it while it is available.
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