$520 - LI-190R Quantum Sensor
quantum PAR sensor; choose cable length and termination type: bare leads or BNC connector
$325 - LI-200R Pyanometer
pyranometer for wide band energy and heat load. Choose cable length and termination type: bare leads or BNC connector
$535 - LI-210R Photometer
measures light with the same sensitivity as a typical human eye. Choose cable length and termination type: bare leads or BNC connector