1. Wavelength identification range: 800-1700nm
2. Detector type: 1mm InGaAs 2 pcs
3. Optical power reading range: -40 dBm to 10 dBm
4. Signal frequency range: 270Hz, 1kHz, 2kHz
5. Power supply type: KFI-45-L uses lithium battery for power supply, KFI-45-G uses AAx2 for power supply (not included)
6. Applicable fiber type: 0.25~3.0mm
7. Detection wavelength range: 800-1700nm
8. Detection frequency range: CW/270/1K/2K Hz
9. Detection distance: up to 5km
10. Size: 219x45x28mm
11. Weight: 235g

VFL features:
1. Power range: 1mW
2. Test distance: 3-5km
3. Wavelength range: 650nm
4. Laser type: LD
5. LED flashlight: supported

OPM features:
1. Wavelength range (nm): 800-1700
2. Power measurement range (dBm): -70 to +6 dBm/-50 to +26dBm
3. Standard wavelength (nm): 850, 980, 1300, 1310, 1490, 1550, 1625
4. Connector: 2.5mm universal adapter + SC
5. Probe type: InGaAs

Illustrate:
1. Comes with OPM function, high-precision high-quality detector, 0.2dB accuracy
2. Hidden VFL+LED light, stable and powerful beam concentration, effectively cooperates with line detection, equipped with high-brightness LED flashlight, easy to operate in dark environment
3. Ergonomic design. When holding the machine, press the trigger and switch on the back with your index finger, clamp the fiber optic cable, and automatically start testing.
4. Accurately identify the direction of the optical fiber. When there is a signal in the optical fiber, the left and right direction lights show the signal direction. The left direction light lights up indicating that the light source is from right to left.
5. Identifies three signal frequencies, and can identify 270Hz/1kHz/2kHz signal frequencies. There will be a buzzing sound when the frequency is identified.
6. Universal clamp, suitable for 3.0/2.0/0.9/0.25mm fiber optic cable