Feature: 1. 4 IN 1 FUNCTION: Multifunctional optical power meter, with red light source, RJ45 network testing and LED light function, which has strong practicability. 2. GOOD PERFORMANCE: The power meter supports fast and accurate measurement without waiting for warm up, with relative power calculation and self calibration. 3. WORKING RANGE: The power measurement range is ‑70‑10dbm, with 850, 980, 1270, 1300, 1310, 1490, 1550, 1577, 1625, 1650nm standard wavelengths. 4. POWER SUPPLY: This fiber optic power meter is rechargeable, equipped with 3.7V 650mah polymer battery and USB charging cable, convenient and practical. 5. GOOD STABILITY: Using sensitive chip, this handheld optical power meter has a compact size and a sturdy internal structure for stable and reliable operation. Specification: Item Type: Optical Power Meter Model: AUA MC70 Material: ABS Power Supply: 3.7V 650mah polymer battery (included battery) Power Measurement Range: -70~+10dbm Probe Type: For InGaAs Wavelength Range: 850-1650nm Standard Wavelength (nm): 850, 980, 1270, 1300, 1310, 1490, 1550, 1577, 1625, 1650 Display Resolution: Linear Display: 0.1%, Logarithmic Display: 0.01dBm Working Temperature: -10-60℃ Storage Temperature: -25-70℃ Automatic Shutdown Time: 10 minutes Battery Continuous Working Time: Not less than 40 hours. Package List: 1 x Optical Power Meter1 x User Manual1 x Lanyard1 x USB Charging Cable