Features: High-quality material: The shell is made of high-quality material, which is drop-resistant, not easy to break, and durable. Wavelength identification: With automatic wavelength identification, our power meters can quickly identify and measure different light sources, simplifying the testing process. Fast and accuracy: The multifunctional optical power meter has a built-in sensitive chip, with accurately measurement results and fasting response. Powerful functions: The multifunctional optical power meter has relative power calculation and calibration functions, and its performance is stable. Self-contained strong light lighting: self-contained high-level LED strong light flashlight, which is convenient for line inspection and construction in dark environments, and the work is more convenient. Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement Description: Wavelength range: 800~1700nm Optical connector: universal connector Power measurement range: -70~+10dBm/-50~+26dBm Uncertainty: ±5% Standard wavelength: 850/980/1270/1300/1310/1490/1550/1577/1625/1650nm Logarithmic display: 0.01dBm Recognizable frequency: 270Hz, 300Hz, 1kHz, 2kHz Working wavelength: 650nm±30nm Output power: 02mw/15mw/30mw Test distance: 300 meters Power supply: 2 AA batteries (not included), 3.7V/700mAh Battery continuous working time: >=120h (optical power meter function) Automatic shutdown time: 10min Working temperature: -10 DegreeC~+50 DegreeC Storage temperature: -40 DegreeC~+70 DegreeC Relative humidity: 0~95% Size: 120*70.5*27.5mm Package List: 1 x Multifunctional Optical Power Meter