*3-ways
*3-super LED to illuminate the vials, suitable for working in dark
*Wave length: 635nm, 650nm
*Output power: ≤ 1mw, ≤ 5mw
*Inputvoltage: 3V
*Accuracy of vial: 1mm/m
*Accuracy of laser spot: 10m≤ 10mm
*Accuracy of laser line: 3mm at 3m"