Singlemode Handheld Optical Variable Attenuator As optical passive devices, attenuators are mainly used in fiber optic to debug optical power performance & optical instrument calibration correction & fiber signal attenuation to ensure the optical power in a stable and desired level in the link without any changes on its original transmission wave. Attenuating wavelength Range 1260~1650nm Fiber Model 9/125um SM Optical Connector 2.5mm FC/SC/ST Connector Resolution 0.05dB Calibrated wavelengths 1310/1490/1550/1625nm Measurement Range 2.5~60dB Minimize Insertion Loss <2.5dB Linearity ±0.5dB Repeating ±0.2dB Attenuating Accuracy ±0.8dB Back Reflection >35dB(typical value40dB) Max input <20dBm Rechargeable batteries 7.4V Power supply adaptor 7~8.5V Operation temperature 0 to 40°C (0 to 104°F) Storage Temperature Range -10 to 60°C (14 to 140°F) Humidity 0~85% (non-condensation) Weight 450g
