Technical Parameters
Product Model: 900D Series
Test wavelength: 1310nm/1550nm+20nm
Fiber type: G.652 single-mode fiber
Dynamic range: 24dB/22dB
Event Blind Zone: 3m
Attenuation blind zone: 8m
Measuring range: 500m~60km
Pulse width: 3ns~10us
Ranging accuracy: ±(1m+sampling interval+0.005%Xtest distance)
Linearity: ±0.2dB/dB
Sampling points: 16k~128k
Sampling Resolution: 0.05m ~8m
Reflection accuracy: ±3dB
Data storage: Internal: ≥600; External: Expandable TF card
Laser safety level: Classl level
File format optical connector: SOR standard file format FC/UPC (interchangeable SC, ST)

Optical Power Meter
Wavelength range: 800nm~1700nm
Optical connector: universal connector FC/SC/ST
Measurement range: -50dBm~+26dBm
Uncertainty: +5%
Frequency Identification: CW/270/330/1k/2kHz
Calibration wavelength: 850/980/1300/1310/1490/1550/1625/1650nm

Light Source
Laser type: FP-LD
Output wavelength: 1310nm/1550nm+20nm
Output power: ≥-5dBm
Output mode: CW/270/330/1k/2kHz
Stability: CW, ±0.5dB/15min (Tested after power-on warm-up for 15min)
Optical Connector: FC/UPC (Interchangeable SC, ST)

VF L
Working wavelength: 650nm+20nm
Output power: >10mW
Operating mode: CW/1Hz/2Hz
Optical connector: universal connector FC/SC/ST

Indicators of the whole machine
Display: 3.5-inch color LCD screen
Data interface: Micro USB
Expandable external storage: TF card
Power supply: Li-polymer battery: 3.7V, 4000mA; power adapter: 5VDC, 2A
Battery life: standby > 20 hours; measurement > 12 hours
Operating temperature: -10°C~+50°C-
Storage Temperature: 40°C~+70°C
Relative Humidity: 0~95% no condensation
Package Included:
- 1 x Optical Fiber Tester
- 1 x cable finder
- 1 x Power Adapter
- 1 x Data Cable
- 1 x CD (with Analyzing Software & Instructions)
- 1 X User Manual
- 1 x SC Connector
- 1 x FC Connector
- 1 x Test Report
- 1 x Certificate
- 10 x Cleaning Cotton Sheets
- 1 x Device Bag

Warm reminder：
1.Your valid phone number is necessary for shipment, otherwise we can not guarantee that the package arrives safely.
2.The price of the goods and shipping costs do not include import tariffs and other costs, this part of the tax is paid by the buyer. Buyers should know the tariffs required by the receiving country in advance before purchasing.
3. Some countries need to provide the recipient's tax ID number, such as South Africa, Chile, Brazil, Peru, Argentina and other countries.                                                                                                                      
4. After receiving the package, if there is any problem with the product, please contact us by leaving a message on ebay first. We'll get you sorted out. Please do not leave negative feedback or return goods without contacting us first, because mutual satisfaction is our goal.