The Solitine Optical Power Meter with VFL & RJ45 Tester is a powerful and reliable tool, ideal for network professionals who need precision in the field. This versatile device can accurately assess whether single network cables are transmitting signals properly and features a wavelength memory function that retains settings even after powering down. Its self-calibration and stable VFL output ensure consistently high performance with excellent accuracy, sensitivity, and linearity. Designed for convenience, the tester has an auto-off feature to preserve battery life and a USB charging port for easy power replenishment. Equipped with a long-lasting 18650 Li-ion battery, it boasts low power consumption for extended standby times. The sturdy rubber shell adds durability for field use, while its FC and SC connector compatibility broadens its utility. Additionally, the optional RJ45 network tester further enhances its capabilities, making it an essential all-in-one solution for optical and network cable testing.