Picotronic-Class-2-Blue-Dot-Laser-Module-Adjustable-Focus-Picotronic-70115505-p-A-Class-2-laser-module-that-emits-a-blue-dot-beam-&-has-adjustable-focus-The-module-has-an-aluminium-body-that-contains-the-electronics-&-the-anti-reflective-coated-glass-protective-lens-allowing-the-module-to-be-operated-in-dusty-&-harsh-environments-The-blue-laser-makes-this-module-suitable-for-applications-such-as-environmental-monitoring-medical-diagnostics-projectors-&-displays-magnetic-levitati