Brief introduction: St805 pon power meter is specially designed for pon network construction and maintenance which can be connected between olt nad ont. The voice, data, video signal online can be measured and displayed synchronously with this meter. Key features 1. Test the three wavelength of the pon network synchronously: 1490nm, 1550nm, 1310nm 2. Can test the burst mode signal of 1310nm 3. Can set the threshold value, upload data, calibrate the wavelength through management software. 4. Can save 1000 records and upload the records to the management software 5. Supply 10 groups threshold values 6. En menu display 7. Auto shut off backlit 8. Real-time display Technical specifications Standard wavelength: 1310(up); 1490(down);1550(down) Pasband(nm):1260f+1360; 1470f+1505; 1535f+1570 Range(dbm): -40f++10; -40f++10; -40f++20 Isolation.1310nm++db++: ; >40; >40 Isolation.1490nm++db++: ; >40; >30 Isolation.1550nm++db++: ; >40; >40 Accuracy: Uncertainty++db++:F+0.5 Polarization relevant loss(db++: