K2701-OXN1 optical active-power meter detects emission levels to 100 mW. This handheld device serves cable-TV and telecommunications networks that use analog transmission. Measuring range is +20 to -60 dBm, and operating range is -18° to +50°C. The meter measures end-to-end attenuation and checks system- and node-transmission levels. Features include three powering methods, multiple reference storage, RF shielding and graphic backlit display.