The SQ-644 Quantum Light Pollution is an amplified sensor with a 4 to 20 mA 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.
| Specifications | |
|---|---|
| Power Supply | 12 to 24 V DC |
| Output (sensitivity) | 0.08 mA per µmol mˉ² sˉ¹ |
| Measurement Range | 0 to 200 µmol mˉ² sˉ¹ |
| Field of View | 180° |
| Spectral Range | 340 to 1040 nm ± 5 nm (wavelengths where response is greater than 50 %) |
| Operating Environment | -40 to 70 C; 0 to 100 % relative humidity |
| Dimension | 30.5 mm diameter, 37 mm height |
| Mass | 140 g |
The SQ-644 Quantum Light Pollution is an amplified sensor with a 4 to 20 mA 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.
| Specifications | |
|---|---|
| Power Supply | 12 to 24 V DC |
| Output (sensitivity) | 0.08 mA per µmol mˉ² sˉ¹ |
| Measurement Range | 0 to 200 µmol mˉ² sˉ¹ |
| Field of View | 180° |
| Spectral Range | 340 to 1040 nm ± 5 nm (wavelengths where response is greater than 50 %) |
| Operating Environment | -40 to 70 C; 0 to 100 % relative humidity |
| Dimension | 30.5 mm diameter, 37 mm height |
| Mass | 140 g |
