... , high stability, long life,low price DM650D1 Red Laser Module Characteriscics:High-quality laser diode,optical glass lens, driver circuit ... pointing stability0.05mradNoise<0.5% 10Hz-50MHzPower stability±1, 3, 5% over 8 hrs rmsOptical axis height93.5mmSize of ... laser modules ,like as dot ,line /cross line laser module,DPSS laser,uniformline laser,single longitudinal mode green laserbeam expander ...