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PRO (Precision Rated Optics) Fiber Optical Light Source LS-500D.

The item has never been used- still has a protective film on the screen, but has a scratch on back (pictured). Comes unboxed. The unit only.

The Precision Rated Optics LS-500D Handheld Stabilized Laser Source is designed for fiber-optic network site installation, acceptance, and maintenance of fiber optic cable. Used with a hand-held optical power meter, the LS-500D can provide you with the fiber optic network optical loss. Depending on the user’s needs it can provide 1 to 4 wavelengths of stable output, and with adjustable continuous power, modulated light output and other functions like backlight intelligent control, the LS-500D product design is energy-efficient. The optional backlight display and automatic shut-off function can:

Support CW and a variety of modulation light output
Adjustable output optical power (optional) (adjustment range 0 – 6dB, step 1dB)
Support automatic shutdown
Support user self-calibration
Backlight intelligent control
Supports FC and SC interfaces
Support single wavelength

Specifications

Wavelength: 1310/1550 ± 20nm (SM)
Optical Connector: FC/SC (FC-LC adapter option)
Laser Type: FP-LD
Output Power: ≥ 5dBm
Short-term stability: ± 0.05dB/15min
Long-term stability: ± 0.15dB/8h
Modulation Mode: CW/270Hz/1kHz/2kHz
Size/Weight (WxDxH): 3.93 x 1.97 x 7.32in / 8.46oz (100 x 50 x 186mm / 240g)
Operating condition: 5~95% relative humidity, 14~140°F (-10~60°C)
Storage condition: 5~95% relative humidity, -22~158°F (-30~70°C)
Power: AA Lithium
Batteries (x3) Battery: ≥ 10h