| NDVI | PRI | |||
|---|---|---|---|---|
| S2-411-SS Upward-looking | S2-412-SS Downward-looking | S2-421-SS Upward-looking | S2-422-SS Downward-looking | |
| Field of View | 180° | 36° | 180° | 36° |
| Calibration Uncertainty | ± 5 % | ± 5 % | ± 5 % | ± 5 % |
| Measurement Range | 2x full sunlight (1000 W m-2) | 2x full sunlight (1000 W m-2) | 2x full sunlight (1000 W m-2) | 2x full sunlight (1000 W m-2) |
| Measurement Repeatability | Less than 1 % | Less than 1 % | Less than 1 % | Less than 1 % |
| Long-term Drift | Less than 2 % per year | Less than 2 % per year | Less than 2 % per year | Less than 2 % per year |
| Directional Response | 5 % at 75° zenith angle | — | 5 % at 75° zenith angle | — |
| Temperature Response | Less than 0.1 % per C | Less than 0.1 % per C | Less than 0.1 % per C | Less than 0.1 % per C |
| Operating Environment | -40 to 70 C; 0 to 100 % relative humidity | -40 to 70 C; 0 to 100 % relative humidity | -40 to 70 C; 0 to 100 % relative humidity | -40 to 70 C; 0 to 100 % relative humidity |
| Communication | SDI-12 | SDI-12 | SDI-12 | SDI-12 |
| Response Time | 1 s | 1 s | 1 s | 1 s |
| Current Draw | 2 mA | 2 mA | 2 mA | 2 mA |
| Housing | Anodized aluminum body with acrylic diffuser | Anodized aluminum body with window | Anodized aluminum body with acrylic diffuser | Anodized aluminum body with window |
| IP Rating | IP67 | IP67 | IP67 | IP67 |
| Dimensions | 40 mm height, 23.5 mm diameter | 40 mm height, 23.5 mm diameter | 40 mm height, 23.5 mm diameter | 40 mm height, 23.5 mm diameter |
| Mass | 110 g (with 5 m of cable) | 110 g (with 5 m of cable) | 110 g (with 5 m of cable) | 110 g (with 5 m of cable) |
| Cable | 5 m of shielded, twisted-pair wire with TPR jacket; pigtail wire leads | 5 m of shielded, twisted-pair wire with TPR jacket; pigtail wire leads | 5 m of shielded, twisted-pair wire with TPR jacket; pigtail wire leads | 5 m of shielded, twisted-pair wire with TPR jacket; pigtail wire leads |
If you would like to share your application of this product, please click here.
