SQ-612-SS is an extended spectrum optical quantum sensor with 0~2.5V analog output, supporting 394nm~747nm (± 5nm) spectra and a maximum range of 4000 µ mol/m²/s， The measurement range of infrared wavelengths has been expanded, which is particularly helpful for measuring Extended Photosynthetically Active Radiation (ePAR). It is very suitable for monitoring new light sources such as LED growth lamps, and can also be used to measure Extended Photon Flux Density (ePFD) of plant canopy, reflection, or transmission under canopy in the field, greenhouse, and growth chamber.

Thanks to the waterproof design of the probe, SQ-612-SS can be used in outdoor natural environments, greenhouses, and artificial climate chambers, as well as underwater measurement environments such as aquariums and oceans. It is suitable for long-term monitoring of aquaculture lights and underwater plant growth lights. The sensor is equipped with an M8 aviation plug, which simplifies the disassembly and replacement of the sensor, facilitates maintenance and recalibration, and can also be directly connected to the AT-100 wireless Bluetooth data logger for use.