Welcome to our store! This handheld optical power meter is designed for continuous optical signal power measurement, controlled by a single microprocessor for comprehensive functionality. Widely used in optical cable construction, maintenance, fiber optic communication, optical fiber sensing, and optical CATV. Features a built-in detector for excellent protection and supports multi-band testing with high accuracy and a color screen. Compact design with automatic shutdown, wavelength memory, manual calibration support, fiber optic work recognition, and a wide testing range. Supports automatic frequency recognition, displaying the corresponding frequency icon when a fiber frequency is received. Equipped with a large-capacity lithium battery for extended use. Battery level is displayed in real-time. Can be charged with a mobile phone charger or power bank. Key Specifications: Measuring Range: -70~+10 dBm Wavelength Range: 800~1700 nm Interface: 2.5mm universal adapter Probe Type: InGaAs Detection Range: 300 um Uncertainty: ±5% Standard Wavelengths: 850, 980, 1270, 1300, 1310, 1490, 1550, 1577, 1625 nm Display Resolution: Linear 0.1%, Logarithmic 0.01dBm Operating Temperature: -20~+60℃ Storage Temperature: -25~+70℃ Drop Height: ≤2m Static Current: ≤2uA Working Current: ≤35mA Charging Current: 300mA Charging Time: ≤3h Auto Shutdown Time: 10min Endurance: ≥13h Standby Time: ≥3 days Power Supply: Lithium battery or USB external power Battery: 1 x 400mAh Rechargeable Lithium Battery Package Includes: 1 x Optical Power Meter 1 x USB Cable 1 x User Manual Your satisfaction is our top priority. If you encounter any issues such as damage or incorrect quantity upon receiving the product, please contact us immediately for the best solution!