Originally published at: Agilent N3970A Handheld Optical Power Meter w/ Carrying Case - Chratec Part
Agilent N3970A! These take two C batteries. No batteries or AC cable included, just what you see in pictures. Power Range: +5 to -60 dBm (850 nm) and +5 to -70 dBm. Wavelength Range: 850 to 1650 nm.
chratec.com