LI-COR LI-193 Spherical Quantum PAR sensor LI-193 PAR An underwater spherical quantum sensor which measures photon flux from all directions (termed quantum scalar irradiance). The sensor can operate down to 350 m and is fitted with a blue-enhanced silicon photovoltaic detector. Two versions of the instrument are available (193SA and 193SB). These use different connector types for the underwater cable. 2012-02-16 10:05:14.0 SDN:L22::TOOL0458 SDN:L22::TOOL0458 SDN:L22::TOOL0458 1 1 2012-02-16 10:05:14.0 accepted false