SS-120 Apogee Field Spectroradiometer (635 to 1100 nm)

The SS-120 measures a wavelength range of 635 to 1100 nm. The spectroradiometer is an easy-to-use, cost-effective, versatile spectral measurement system that can be interfaced to a computer. Typical applications include measurement of spectral output (energy flux density, photon flux density, or illuminance) of different radiation sources (often for plant or human lighting), and reflectance and transmittance measurements of natural and synthetic surfaces and materials (often plant leaves and canopies).

THE SS-120 PACKAGE INCLUDES:

- Spectroradiometer unit and cosine corrected detector mounted in the housing
- 180° FOV head and black cap
- AL-200 bubble-level
- USB cable for computer interface
- 2GB USB drive with ApogeeSpectrovision software (Windows compatible, XP and later; Mac compatible, 10.10 and later) and required drivers
- Carrying case

- Wavelength Range 635 to 1100 nm
- Wavelength Measurement Interval 1 nm
- Wavelength Resolution 3.0 nm (full-width, half-maximum)
- Wavelength Accuracy ± 0.5 nm
- Wavelength Repeatability ± 0.2 nm
- Analog to Digital Resolution 14 bit
- Signal to Noise Ratio 1500:1 (at maximum signal)
- Stray Light ≤; 0.25 %at 850 nm
- Dark Noise ≤ 3 counts
- Integration Time Range 10 ms to 10 s
- Measurement Sensitivity Greater than 10 % of max sensitivity for wavelengths less than 1030 nm
- Measurement Repeatability Less than 1.0 % (wavelengths less than 1020 nm)
- Directional (Cosine) Response ± 5 % at 75 ˚ zenith angle
- Fields of View 180 ˚ (upward-facing), 25 ˚ or 150 ˚ (downward-facing)
- Temperature Response -0.1 ± 0.1 % per C
- Current Draw 190 mA during measurement and when idle (USB)
- Power Requirement 1 W (USB)
- Interface Cable: 5 m PVC jacket with USB (for computer)
- Software Apogee Spectrovision (windows compatible, XP and later, Mac compatible, 10.9 and later)
- Operating Environment -20 to 70 C, 0 to 100 % relative humidity
- Thread Size (for Mounting) 1/4" - 20
- Dimensions 89.3 mm height, 50.8 mm width, 38.1 mm depth
- Mass 300 g
- Warranty 1 year against defects in materials and workmanship