... system 3,Highest quality 4,longest lasting 5,5yrs warranty IRS-0200 Infrared Laser Sight Key Features:Wide Operating Temeprature range ... Laser Positioning Surveying Instrument Medical Instrument Military Equipment SpecificationsSpecifications Model IRS-0200A/B Wavelength 780nm, 808nm, 850nm, 980nm Output <5mW Battery ...