| Model | ALK-3000-A | ALK-3000-S |
| Wavelength（±20nm） | 1310/1550 | Support online-testing Wavelength 1550nm |
| Dynamic Range （db) | 24/22 | 22 |
| Pulse width | 10ns、20ns、50ns、100ns、 300ns、1.0us、2.5us、10us、 20us、25us |
| Event Dead zone（m） | 2 |
| Attenuation Dead zone（m） | 10 |
| Distance range（Km） | 0.5~160 |
| Distance uncertainty | ±（1 + 0.005 % x Distance + Sampling Resolution） |
| Loss Measurement Accuracy | ±0.05dB/ dB |
| Data sampling point | 12800 |
| Memory Capacity | 1000 curves |
| Fiber type | SM |
| LCD size | 5-inch HD color touch screen |
| Capacity of screen touches | >10 million times |
| Standard interface | FC/SC/ST/LC Optional |
| VFL |
| wavelength | 650nm±20 |
| Output Power | ≤2mW Standard |
| Standard connectorI | FC/UPC |
| OPM |
| Wavelength Range（nm） | 800∽1700 |
| Detection range(dBm) | -50∽+16 |
| Detector type | InGaAs |
| Calibration wavelength(nm) | 850、980、1300、1310、1490、1550、1625 |
| Linearity | ±5% |
| Flange form | FC、SC、LC、ST（ Optional ) |
| OLS |
| Wavelength （nm） | 1310/1550 |
| Output Power(dBm) | ≥-7 |
| Ethernet Cable test | Network cable length test |
| Network cable test function | can realize network cable open circuit, short circuit, out-of-order test.
Roughly detect the fault location of the network cable |
| Other |
| Battery | 5000mAh Li-battery |
| Li-battery* | >10 Hours（According to Bellcore TR-NWT-001138） |
| Size | 165*130*45mm（L×W×H） |
| Weight | 1Kg |