Description Features Different attenuator range Can save current value as reference Memorize the value after instruments shut down Energy save mode Technical Specification Wavelength 1310 nm, 1490 nm, 1550 nm Attenuation Range 40 dB, 60 dB, 80 dB (SM) Attenuation Mode Digital Insertion Loss <2.5 dB Return Loss >40 dB Display LCD, 128 x 64 Uncertainty ±0.5 dB
