The SQ-645 Quantum Light Pollution is an amplified sensor with a 0 to 5 V output. The sensor features a rugged, aluminum housing that is fully-submersible and built to withstand harsh conditions, and high-quality cable terminating in pre-tinned pigtail leads for easy connection to dataloggers and controllers. The sensor cable includes an IP68 marine-grade stainless-steel cable connector to simplify sensor removal and replacement from permanent installations for maintenance and calibration. Typical applications of Quantum Light Pollution sensors include incoming PFD measurements over plant canopies in indoor greenhouses or in growth chambers, and reflected or under-canopy (transmitted) PFD measurements in the same environments.Â
The analog version of this sensor (SQ-640) comes with the inline cable connector placed 30 cm from the sensor head for either standard use as a long-cable pigtail sensor, or for use withÂ ourÂ microCache Bluetooth Micro LoggerÂ by unscrewing the connector, discarding the long section of cable and then screwing the sensor to the mating connector on the microCache.
FOR MORE PRODUCT INFORMATION, CHECK OUT THESE LINKS
MORE INFORMATION ON APOGEE QUANTUM LIGHT POLLUTION SENSORS >>Â click here
How is the SQ-645 different from previous Apogee quantum sensors?
The SQ-645 is an extended range photon flux density (PFD) 0 to 5 V sensor with a spectral range of 340 to 1040 nm Â± 5 nm, which can be seen in the graph below.Â