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| Model | RY-PM500A | RY-PM500B |
| Calibration Wavelength(nm) | 800~1700 | |
| Detector type | InGaAs | |
| Measurement Range(dBm) | -70 10 | -50 26 |
| Uncertainty (dB) | 0.2(5%) | |
| linearity (dB) | 0.01 | |
| Display resolution(dB) | 0.03 | |
| Frequency ID Hz | 270 330 1K 2K | |
| Wave ID nm | 850,980,1300,1310,1490,1550,1625 | |
| Date Storage Capacity | 1000 | |
| Communication Port | USB | |
| Connector | FC/SC/ST Interchangeable | |
| Alkaline battery | 3AAA 1.5V or Li battery(9V) | |
| Power Adapter(V) | 8.4 | |
| Battery Operating time (h) | 240 without backlight | |
| Operation Temperature(oC) | -10(oC) 60 | |
| Storage Temperature(oC) | -25(oC) 70 | |
| Dimension(mm) | 172*82*33 | |
| Weight(g) | 310 | |
| MODEL | INCLUDES |
| All RY-PM300 Models | RY-PM300 Optical Power Meter, 3pcs 1.5V Batteries, PowerAdapter, User Manual, USB cable, CD, Cotton Stick and Soft CarryingCase. |
RY-PM500A Optical Power Meter
