Feature:1. Wavelength Testing: High accuracy handheld PON power meter, supporting the testing of 1310nm, 1490nm, and 1550nm wavelength signals in PON networks, with filtering function, and a wide measurement range.2. Portable Design: This PON power meter is lightweight and portable, easy to use and carry, suitable for use in different environments. Featuring clear display and simple buttons, convenient and practical.3. High Accuracy Measurement: The optical power meter adopts for InGaAS sensor, which have high accuracy, good stability and reliability. Supports 900 sets of data storage, with strong practicality.4. LED Display Screen: This fiber optic tester adopts a backlight LED LCD display screen, which is suitable for working under different lighting conditions. Clear and intuitive, greatly improving work efficiency.5. Sturdy and Practical: This portable PON power meter is made of excellent materials, with high strength, wear resistance, impact resistance, long service life, and is suitable for various environments.Specification:Item Type: PON Power MeterSensor Type: For InGaASDisplay Resolution: 0.01dBThreshold Setting: 10 sets, set by the host computerCalibration Wavelength: 1310nm, 1490nm, 1550nmData Storage: 900 SetsOperating Temperature: -10-50Relative Humidity: 0%-95%RHInterface Type: For APC, SCBattery Type: 2 x AA Battery (not included)Measuring Wavelength1310nm1490nm1550nmIsolation Degree with Filter Function1490nm Band >40dB1310nm Band >40dB1310nm Band >40dB1550nm Band >40dB1550nm Band >30dB1490nmBand >30dBMeasuring Range-40dBm-16dBm-50dBm-16dBm-50dBm+23dBmMeasuring Optical Frequency Broadband1260-13601480-15001539-1565.Package List:1 x PON Power Meter