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NK305

NK305 Optical Power Meter

Category Optical Power Meter

The NK305 Variable Optical Attenuator delivers precise optical signal control with high accuracy, wide attenuation range, and portable rechargeable design for fiber testing applications.

The NK305 Variable Optical Attenuator is a compact and high-precision instrument designed for optical signal adjustment and calibration. Offering attenuation ranges up to 0–60dB or 0–80dB with 0.1dB resolution, it ensures accurate and stable performance. Featuring universal FC/UPC interchangeable interfaces, rechargeable lithium battery, and automatic shutdown function, it is ideal for fiber communication testing, laboratory calibration, and engineering maintenance.

Product Features

5 calibration wavelengths: 1310 / 1490 / 1550 / 1625 / 1650nm
0–30dB / 0–60dB / 0–80dB optical attenuation range
0.1dB resolution with low insertion loss
High attenuation accuracy and repeatability
FC / UPC universal interface (interchangeable SC)
Lithium battery with up to 48 hours working time
Automatic shutdown and backlight display

Specifications

Optical Attenuator

Wavelength
850nm / 1300nm / 1310nm / 1490nm / 1550nm / 1625nm / 1650nm

Attenuation Range
0–30dB
0–40dB
0–60dB
0–80dB

Connector
FC / UPC (Interchangeable SC)

Display Resolution
0.1dB

Attenuation Repeatability
±0.1dB (0–40dB)
±0.25dB (40–80dB)

Attenuation Accuracy
±0.25dB
±0.4dB (40–80dB)

Maximum Input Optical Power
+18dBm

Others

Power Supply
1500mAh Rechargeable Lithium Battery (Optional)
AC/DC Adapter: Input 100V–240V, 50–60Hz, 0.1A
Output: DC 5V, 2A
Three AA Batteries

Automatic Shutdown Time
10 minutes

Continuous Working Time
≥48h

Operating Temperature
-10°C to +50°C

Storage Temperature
-40°C to +70°C

Relative Humidity
0–95% Non-Condensing

Size
186mm × 100mm × 50mm

Weight
≤180g

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