In order to make highly clear dot measurement for all night version fields, any visible laser device cannot be workable at all, but substituting by a long wavelength made 980nm infrared laser diode module. It is projecting invisible infrared laser beam directly from a 980nm infrared laser diode within 100mW to 500mW. Every time it makes professional use of night version device and 5V, 9V 1000mA DC power supply, without any relying on any manual labor force input, it is keeping work with the most intense infrared laser light emission and highly clear infrared dot generation at great distance. When this infrared dot laser makes correct use of output power, after its freely adjusted laser beam focus and infrared dot projecting direction, without any barrier of long distance, high height and other harsh working occasion, it just brings users low cost, high stability and long lasting dot alignment for all night version fields.https://www.berlinlasers.com/808nm-infrared-laser-diode-module
https://www.berlinlasers.com/980nm-infrared-laser-diode-module
https://www.berlinlasers.com/