Specifications
- Power Supply 5.5 to 24 V DC
- Current Draw 1.4 mA (quiescent), 1.8 mA (active)
- Calibration Factor Custom for each sensor and stored in firmware
- Calibration Uncertainty ± 5 %
- Output Range SDI-12 Wavelength Ranges 645 to 665 nm ± 5 nm (Red); 720 to 740 nm ± 5 nm (Far-Red)
- Measurement Range 0 to 400 µmol mˉ² sˉ¹ (Red and Far-Red)
- Measurement Repeatability Less than 1 %
- Long-term Drift Less than 2 % per year
- Response Time Less than 0.6 s
- Non-linearity Less than 1 % (up to 400 µmol mˉ² sˉ¹) (Red and Far-Red)
- Field of View 180° Directional (Cosine) Response ± 2 % at 45˚, ± 5 % at 75˚ zenith angle
- Temperature Response Less than 0.1 % per C
- Housing Anodized aluminum body with acrylic diffuser
- IP Rating IP68
- Operating Environment -40 to 70 C; 0 to 100 % relative humidity
- Dimensions 30.5 mm diameter, 37 mm height
- Mass (with 5 m of cable) 140 g Cable 5 m of shielded, twisted-pair wire; TPR jacket (high water resistance, high UV stability, flexibility in cold conditions); pigtail lead wires; stainless steel (316), M8 connector
- Warranty 4 years against defects in materials and workmanship
Ordering information
S2-431-SS SDI12
s2-131-spec-sheet