A fibre optic power meter integrating OPM and VFL functionality, eliminating the need for separate devices for enhanced convenience and capability ±0.2 dB high precision and ±0.1 dB high linearity ensure stable and accurate measurement results Features an integrated rechargeable battery with USB charging port, eliminating battery replacement and reducing costs. Automatic power-off function further extends operational and standby durations. Rubberised casing enhances device protection and improves handheld usability during field operations. Universal 2.5mm interface with standard FC and SC connectors. An ideal tester for telecommunications and cable television maintenance. Specifications: A: Optical power -70dB; Red light 1mW / B: Optical power -50dB; Red light 1mW Color: As Shown Material: ABS Package Contents: 1 * Optical Power Meter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.