The SLPP-04052 from Precision Micro-Optics is a Violet Laser Pointer that operates at a wavelength of 405 nm. It delivers an output power of 1 mW - 3 mW and has a maximum beam divergence of 0.5 mrad. This portable laser has a near-round transverse mode and beam size of 1.5 mm. It has a 5-point safety system that includes an aperture shutter, key switch, indicator LED, interlock, and output delay. This laser uses a lithium battery that requires a DC supply voltage of 3 V and is available in a module that measures 150 mm x 16.5 mm.