Model comparison table
| model | wavelength | explain |
| GM-01A-1310/1550 | 1310nm/1550nm | Dual wavelength |
| GM-01D-1310 | 1310nm | Single wavelength,Optical isolation |
| GM-01D-1550 | 1550nm | Single wavelength,Optical isolation |
OTDR Parameter
| Project | Parameter |
| Fiber type | Single mode |
| Wavelength | 1310/1550nm |
| Dynamic range | 22/20dB |
| Test scope | 200m~80km |
| The test pulse width | 5nS~10uS |
| The sampling points | 10000 |
| Resolution of sampling | 0.25m |
| Linearity | ≤0.05dB/dB |
| Event blind area | 2.5m |
| Attenuation blind area | 15m |
| Distance accuracy | ±(1m+distance×0.00005+sampling resolution) |
| Refractive index range | 1.000000~1.999999 |
| Data storage | 500PCS |
Optical power meter parameters
| Project | Parameter |
| Measuring range | -60dB~10dB |
| Wavelength | 850/1300/1310/1480/1550/1625(nm) |
| Accuracy of power | ±0.2dB |
| Resolution of display | 0.01dB |
| REF function | support |
Red light source parameter
| Project | Parameter |
| The wavelength | 650nm |
| The output power | 10nW |
| Way to work | CW/2Hz |
Stable light source parameter
| Project | Parameter |
| The wavelength | By Product Configuration1310/1500nm |
| The output power | >-5dB |
| The output frequency | CW/270Hz/1000Hz/2000Hz |
Network cable test
| Project | Parameter |
| Network cable test sequence | support T568A/T568B |
| Network cable test distance | 1~300m |
Other parameters
| Project | Parameter |
| Charging interface | USB-TYPE-C 1A |
| Display | 3.5 inches color LCD (320*480) |
| The battery | 3.7V/4000mAh It can be used continuously for more than 8 hours |
| Working temperature | -10℃~50℃ |
| Storage temperature | -20℃~70℃ |
| Humidity | <90%（No condensation） |
| Size | 171*90*41mm |
| Weight | The host weight 356g |
