Handhold Optical Variable Attenuator EVA50

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Model EVA50-40 EVA50-60 EVA50-80
Attenuating Range 40 dB (SM) 60 dB (SM) 80 dB (SM)
Calibrated Wavelengths 1310nm / 1490nm / 1550nm    
Fiber Mode SM    
Attenuating Mode Digital    
Display Resolving Power 0.1 dB    
Display LCD, 128*64    
Max Input Power + 28 dBm    
Return Loss* > 40 dB    
Insertion Loss* < 2.5 dB    
Connector FC/PC (or customize)    
Uncertainty 0.5 dB    
Repeatability* 0.2 dB    
RS-232 Optional    
Auto Power Off No operation in 10 minutes (can be canceled), Low battery energy  
Battery Charge Yes    
Operate Time Above 20 hours    
Power Supply 3 * AA batteries or AC/DC adapter  

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