Universal back clip design,suitable for 0.25/0.9/2.0/3.0 fiber-LED backlit display,suitable for various environment and no auxiliary lighting required-Testing sensitivity -40dBm to 10 dBm-Strong and stable light source, strong penetrating power-Be equipped with LED light,more convenient to work in the dark-Built-in VFL,2.5mm universal connectors-strong stability-testing distance is up to 5KM
