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The Advantest TQ8210 Optical Power Meter features auto ranging, wavelength sensitivity compensation, both linear (W) and logarithmic (dBm) displays. It is a handled device that can manage a wide range of applications including optical communications, CD players, laser printers, and opto magnetic disk R&D and maintenance.

Specifications:
- Operating conditions: 0°C to 40°C, 85% RH or less
- Power: Internal NiCd battery (more than 8 hours when LCD backlight is ON, More than 10 hours when LCD backlight is OFF.)
- Mass: 400g maximum 
- Standard Accessories: AC adaptors A08017 (90 to 110V AC) or A08035 (103 to 132V AC) or A08019 (200 to 245V AC)
- Resolution: 0.005% to 0.1% (with unit of W) 0.01% (with unit of dBm)
- Absolute Accuracy of A/D converter: ±0.2% (included sensor measurement accuracy)
- Display: 
LCD with back light for use in dark location
Wavelength readout 4 digits(nm)
Power readout 4-1/2 digits (mW, uW, nW, dBm, dBr) 
- Range switching: Automatic or manual
- Measurement speed: 2 Measurements/s or faster
- Dimensions (W x L x H): 80 × 180 × 35 mm