SQ-420 Smart Quantum Sensor | USB Output

$195.00

The new SQ-420 smart quantum sensor can be connected directly to a computer for taking spot measurements or graphing and datalogging real-time PPFD using the included ApogeeConnect software. The sensor can also act as a stand-alone PAR datalogger by simply connecting it to most standard 5 V DC USB power plugs. Internal memory within the sensor head is capable of storing 10,000 user-specified periodic measurements that can be downloaded as a CSV file to a computer for analysis.

Internal Data Storage
The sensor has internal data storage capability with the ability to hold up to 10,000 measurements. This allows the sensor to collect data while connected to most stand-alone 5 V DC power supply such as a USB wall adapter.

No Datalogger Required
The sensor can be connected to a desktop or laptop computer via USB 2.0 type A plug, to be used with the ApogeeConnect software (Windows compatible, XP and later; Mac compatible, 10.10 and later). The included Apogee software gives the user control of data logging and calibration settings, provides a real time output display and graph of PPFD measurements and allows the data set to be saved as a csv file.

Independent Calibration
The SQ-420 is calibrated independently for sunlight and electric light to improve measurement accuracy. The light source calibration can be selected in the settings menu of the Apogee software.

Software Overview

SQ-420 Software

Full Description

The new SQ-420 smart quantum sensor can be connected directly to a computer for taking spot measurements or graphing and datalogging real-time PPFD using the included ApogeeConnect software. The sensor can also act as a stand-alone PAR datalogger by simply connecting it to most standard 5 V DC USB power plugs. Internal memory within the sensor head is capable of storing 10,000 user-specified periodic measurements that can be downloaded as a CSV file to a computer for analysis.

Internal Data Storage
The sensor has internal data storage capability with the ability to hold up to 10,000 measurements. This allows the sensor to collect data while connected to most stand-alone 5 V DC power supply such as a USB wall adapter.

No Datalogger Required
The sensor can be connected to a desktop or laptop computer via USB 2.0 type A plug, to be used with the ApogeeConnect software (Windows compatible, XP and later; Mac compatible, 10.10 and later). The included Apogee software gives the user control of data logging and calibration settings, provides a real time output display and graph of PPFD measurements and allows the data set to be saved as a csv file.

Independent Calibration
The SQ-420 is calibrated independently for sunlight and electric light to improve measurement accuracy. The light source calibration can be selected in the settings menu of the Apogee software.

Software Overview

SQ-420 Software

PAR Measurements Characterize Tree Coverages
Using line quantum meter to study the percent of PAR (under canopy/open sky) and its relation to survival and initial growth of native forest species.
Controlling Flowering of Orchids in Greenhouse
Line quantum sensor used to measure PPFD and daily light integral, while experimenting with temperature to control flowering.
Current Stock:
Resolution 0.1 &micro;mol m<sup>-2</sup> s<sup>-1</sup> Calibration Factor Custom for each sensor and stored in the firmware Calibration Uncertainty &plusmn; 5 % (see Calibration Traceability below) Measurement Repeatability Less than 0.5 % Non-stability (Long-term Drift) Less than 2 % per year Non-linearity Less than 1% (up to 4000 &micro;mol m<sup>-2</sup> s<sup>-1</sup>) Response Time Software updates every second Field of View 180&deg; Spectral Range 410 nm to 655 nm (wavelegnths where response is greater than 50% of maximum; see Spectral Response below) Spectral Selectivity Less than 10 % from 469 to 653 nm Directional (Cosine) Response &plusmn; 5 % at 75&deg; zenith angle (see Cosine Response below) Temperature Response 0.06 &plusmn; 0.06 % per C Operating Environment -40 to 70 C, 0 to 100% relative humidity; can be submerged in water up to depths of 30 m Dimensions 24 mm diameter, 28 mm height Mass Sensor head weighs 90 g USB Cable 4.5 m (15 ft) Current Draw 61 mA Warranty 4 years against defect in materials and workmanship
Width: 9.00
Height: 6.00
Depth: 4.00
SKU: SQ-420