As the driving force for photosynthesis, light is fundamentally important to crop production. Plant growth and development is significantly influenced by both the quantity and the quality of light. Light energy is relevant to other factors too. The ET calculation (evapotranspiration) for irrigation scheduling uses solar radiation as a key variable. Leaf wetness periods or high humidity, which affect disease pressure, can be mitigated with sunny days versus cloudy days. It is essential that growers understand this important variable in order to efficiently produce quality plants.


FieldGuard PAR Light Sensor

The FieldGuard PAR light Sensor Measures light with a wavelength between 400 to 700 nanometers. PAR is photosynthetic active radiation. PAR light is the wavelengths of light within the visible range of 400 to 700 nanometers (nm) which drive photosynthesis

Specifications:
Range : 0 to 2500 µMol/m²/s¹
Accuracy : ± 5%
Excitation Voltage : 3.0 tp 5.0 Vdc
Sensor Output : 0 to 2.5V
Linear : µMol/m²/s¹ = V*1000


FieldGuard UV Light Sensor

The FieldGuard UV light Sensor Measures light with a wavelength between 250 to 400 nanometers. This is well within the range of so called Uv A (320 to 420 nm) and Uv B (280 to 320 nm) light

Specifications:
Range : 0 to 2000 µMol/m²/s¹
Accuracy : ± 5%
Excitation Voltage : 3.0 tp 5.0 Vdc
Sensor Output : 0 to 2.0V
Linear : µMol/m²/s¹ = V*100


FieldGuard Solar Radiation Sensor

The FieldGuard Solar Radiation light Sensor Measures light with a wavelength between 300 to 1100 nanometers. Solar irradiance is the power per unit area received from the Sun in the form of electromagnetic radiation as reported in the wavelength range of the measuring instrument. The solar irradiance is measured in watt per square metre (W/m2) in SI units.

Specifications:
Range : 0 to 1500 W/m²
Accuracy : ± 5%
Excitation Voltage : 3.0 tp 5.0 Vdc
Sensor Output : 0 to 3.0V
Linear : W/m² = V*500


FieldGuard PAR Light 3 Sensor Bar

Average PAR readings to minimize the effects of small shadows. The FieldGuard PAR light Sensor Measures light with a wavelength between 400 to 700 nanometers. PAR is photosynthetic active radiation. PAR light is the wavelengths of light within the visible range of 400 to 700 nanometers (nm) which drive photosynthesis

Specifications:
Range : 0 to 2500 µMol/m²/s¹
Accuracy : ± 5%
Excitation Voltage : 3.0 tp 5.0 Vdc
Sensor Output : 0 to 2.5V
Linear : µMol/m²/s¹ = V*1000
# sensors : 3 PAR light sensors


FieldGuard PAR Light 6 Sensor Bar

Average PAR readings to minimize the effects of small shadows. The FieldGuard PAR light Sensor Measures light with a wavelength between 400 to 700 nanometers. PAR is photosynthetic active radiation. PAR light is the wavelengths of light within the visible range of 400 to 700 nanometers (nm) which drive photosynthesis

Specifications:
Range : 0 to 2500 µMol/m²/s¹
Accuracy : ± 5%
Excitation Voltage : 3.0 tp 5.0 Vdc
Sensor Output : 0 to 2.5V
Linear : µMol/m²/s¹ = V*1000
# sensors : 6 PAR light sensors