Overview: The HortiMaX PAR sensor is designed to measure light in the photosynthetic spectrum, known as Photosynthetically Active Radiation (PAR). It is essential for assessing the growth potential of crops both indoors and outdoors. The sensor requires minimal maintenance and can be connected to systems like Clima 500 and MultiMa.

Specifications: The PAR sensor measures the number of photons plants can absorb, providing an objective assessment of lighting quality. It is a point sensor, meaning it measures light in a small area, making sensor placement crucial for accurate readings.

PAR Comparisons: Commonly used by study groups, the PAR sensor helps compare the amount of PAR received by crops. Accurate placement agreements are necessary to ensure valid comparisons among different growers.

Minimum Day Sum: The minimum day sum is the least amount of light required for plant growth. For example, tomatoes and roses both require a minimum of 12 mol/m²/day.

PAR Day Sum: This is the total number of micromol/m²/day provided by different light sources. For instance, a summer day provides 30 mol/m²/day, while a winter day provides 3 mol/m²/day. Artificial lighting like SON-T can provide between 7 to 10 mol/m²/day depending on the lux and duration.

Importance of PAR: PAR, along with CO2 and water, is crucial for photosynthesis. The more PAR a plant receives, the greater its growth potential. The sensor measures light within the 380 to 750 nm wavelength range, which is critical for photosynthesis.