Welcome to our store! This 4-in-1 Multifunctional Optical Power Meter features a red light source, RJ45 network testing, and an LED light, making it incredibly practical. Enjoy fast and accurate measurements without waiting for warm-up, thanks to relative power measurement and self-calibration. Operating Range: -70‑10dbm, with standard wavelengths of 850, 980, 1270, 1300, 1310, 1490, 1550, 1577, 1625, and 1650nm. Power Supply: Rechargeable with a 3.7V 650mah polymer battery and USB charging cable for your convenience. Excellent Stability: Equipped with a sensitive chip, this handheld optical power meter boasts a compact size and robust internal structure for stable and reliable operation. Item Type: Optical Power Meter Model: AUA MC70 Material: ABS Power Supply: 3.7V 650mah polymer battery (battery included) Power Range: -70~+10dbm Probe Type: 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: 0.01 dBm Operating Temperature: -10-60 ℃ Storage Temperature: -25-70 ℃ Automatic Shutdown Time: 10 minutes Continuous Battery Working Time: Not less than 40 hours Package Includes: 1 x Optical Power Meter 1 x User Manual 1 x Lanyard 1 x USB Charging Cable Your 100% satisfaction is our top priority. We are committed to providing you with the best service. If you encounter any issues upon receiving the product, such as damage or incorrect quantity, please contact us immediately, and we will provide you with the best solution!