PAR Sensor for Greenhouse/Farm Plant Growth Measurement 0-5V/RS485/Modbus

Photosynthetic Active Radiation Solar Light PAR Sensor:

Photosynthetic Active Radiation Sensor(PAR Sensor)  also known as the number of light quantum,is mainly used to measure the photosynthetic effective radiation of natural light in the wavelength range from 400 to 700 nm,and it is easy to use, which can be directly connected with digital voltmeters or data collectors and can be used under all-weather conditions.

It is easy installation and can work continuously in all weathers. When there is sunlight, voltage output proportional to incident light intensity will be generated by the Silicon photodetector in the sensor. Its sensitivity is proportional to the cosine of incident light direct angle. Each product is with one sensitivity coefficient respectively.It can directly output radiation value in unit of μ*mol/m2*s.

Photosynthetic Active Radiation Sensor(PAR Sensor)  is widely used in the study of agricultural meteorology and crop growth.

Photosynthetic Active Radiation Sensor(PAR Sensor)  Product Description:

This par sensor can be used alone for outdoor monitoring of radiation driving photosynthesis, or it can be used with a fixed weather station. Get accurate and cost-effective measurements of photosynthetically active radiation (PAR) from all light sources used to grow plants.

Photosynthetically active radiation sensors are designed to measure light intensity at frequencies associated with photosynthesis. This par sensor has a measurement range of 0 to 2000 W/m2 and a wavelength range of 400 to 700 nm. 

All aluminum shell material, good waterproof, can be used outdoor for long-term monitoring. Provide you with RS485/0-5V and other signal output methods.

 PAR Sensor Features

The PAR (photosynthetically active radiation) sensor adopts the principle of photoelectric induction. The par sensor working principle: when there is light, a voltage signal proportional to the intensity of the incident radiation is generated, and its sensitivity is proportional to the cosine of the direct angle of the incident light. 

This par sensor uses high-precision photoelectric sensing elements, with high absorption in the 400-700nm spectral range and good stability. The shell adopts special treatment to reduce dust adsorption and effectively prevent the external environment from damaging the internal components. 

Why Choose NiuBOL PAR Sensor?

High accuracy

The built-in sensor adopts high-precision photoelectric sensing element, which has high spectral responsivity and sensitive response to the spectrum of 400~700nm. A high-quality cosine corrector is used to ensure a standard cosine response, which greatly reduces the measurement error.

Long using life

The overall housing of the NiuBoL PAR sensor is made of a special aluminum alloy that will not accumulate dust and rain. This keeps the sensor clean and minimizes errors caused by dust blocking the radiation path. It can also work normally in harsh environments.

Remote monitoring

The par sensor can be connected to the customer’s own data device. Easily access data remotely, so you can view data through computer/APP anytime, anywhere. Accurate indoor/outdoor PAR measurement.

Application of photosynthetically active radiation sensor (PAR Sensor)

I. Application of PAR Sensor in plant photosynthesis research and vegetation index research, etc.

Photosynthetically active radiation has a regulatory effect on photosynthesis, growth and development, morphology and plant metabolism, etc. Different wavelengths of light irradiated on plants have different physiological effects on plants, and thus the weight of light in different wavelengths involved in photosynthesis is different, and varies with plant species and growth stages. The photosynthetic effective radiation data measured by photosynthetic effective radiation sensor is important for the study of plant growth, plant photosynthesis, and vegetation index.

Application of PAR Sensor in greenhouse

The measurement of photosynthetic effective radiation in greenhouse can grasp the intensity of internal light in greenhouse, evaluate the light environment in greenhouse and provide a basis for the selection of suitable crop varieties for greenhouse, and also control the automatic shuttering device of greenhouse according to the photosynthetic effective radiation.

Application of PAR Sensor in facility agriculture

Photosynthetically active radiation sensor can be applied in facility agriculture, especially in plant factories with plant supplemental lights. The measurement of photosynthetic effective radiation can monitor and regulate the light environment in the whole greenhouse, and also accumulate the light data of plants in the growth cycle.

Artificial light supplementation in facility agriculture must follow the light physiological characteristics of plants to achieve better supplementation effect, so the spectral composition and irradiation intensity of the supplemental light source need to be accurately measured; on the other hand, the study of the light physiological characteristics of plants also needs to accurately measure the incident light.