NewOpto offers Power & Energy Meter, which is selected for the applications, such as power range, resolution, wavelength, aperture, meter type.

PM120VA, 50nW-50mW Power Range, 1nW Resolution, 200-1100nm Wavelength, Si Detector, Analog/Digital Type.
PM120D, 50nW-50mW Power Range, 1nW Resolution, 400-1100nm Wavelength, Si Detector, Digital Type.
PM121D, 500nW-500mW Power Range, 10nW Resolution, 400-1100nm Wavelength, Si Detector, Digital Type.
PM130D, 500pW-500mW Power Range, 100pW Resolution, 400-1100nm Wavelength, Si Detector, Digital Type.
PM122D, 50nW-40mW Power Range, 10nW Resolution, 700-1800nm Wavelength, Ge Detector, Digital Type.
PM310D, 10mW-10W Power Range, 200uW Resolution, 0.19-25um Wavelength, Thermal Detector, Digital Type.