Microprocessor-driven hand-held optical power meter featuring linear amplification technology for long-term calibration stability. With five calibrated wavelengths, 780, 850, 1300, 1310 and 1550, for accurate transmitter output power measurements. Lasts over 14 hours on a single 9V battery. Five calibrated wavelengths Measurement range: 23 to -50dBm Simple, one-touch dBm measurements Resolution: 0.05dB Auto-off function

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