Key Features *Wide Wavelength Range: Typically supports 850nm, 1300nm, 1310nm, 1490nm, 1550nm, and 1625nm, *High Accuracy: Delivers precise power measurements with minimal margin of error, *Measurement Units: Displays results in dBm, mW, μW, and dB for various needs, *Dynamic Range: Supports a wide dynamic range suitable for both low- and high-power measurements, *Backlit Display: Easy-to-read LCD screen for use in low-light environments, *Auto Power-Off: Energy-saving feature prolongs battery life, *Battery Operated: Long-lasting operation using AA or rechargeable lithium batteries, *Connector Compatibility: Interchangeable adapters (FC/SC/ST/LC) for flexible use with different connectors, *Reference Function: Allows users to set a reference level for comparative loss testing, *Compact and Rugged Design: Portable and durable, ideal for fieldwork, *Calibration Support: Most models come with factory calibration certificates and support recalibration,