Cảm biến PAR
The Veswe PAR Sensor is precision-engineered to measure photosynthetically active radiation, capturing light intensity in the critical 400–700 nm spectral range essential for plant growth. It offers a wide measurement range of 0–2500 μmol/(m²·s), ensuring accuracy in both low and high light conditions.
Housed in a robust full aluminum casing, this sensor provides excellent waterproof performance for reliable long-term outdoor deployment. It supports versatile integration with multiple signal outputs (RS485, 0–5V, 0–10V, 4–20mA), making it ideal for greenhouses, agronomy research, and environmental monitoring systems.
- Model: VRS-GH-&-AL-EX
- Số lượng đặt hàng tối thiểu: 1 chiếc
- Thời gian giao hàng: trong vòng 24 giờ
- Hỏi về giá ngay bây giờ
Thông tin liên hệ: Email: contact@veswe.com | WhatsApp: +8613418148929
Overview - PAR Sensor
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.
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.
PAR sensor parameters
| Nguồn điện | 7V~30V DC (0-10V only accept 24V DC power) |
| Dấu hiệu đầu ra | RS485/4~20mA/0-5V/0-10V |
| Tiêu thụ điện năng | 485 output: 0.06W, 4~20mA/0~5V/0~10V: 0.7W |
| Nhiệt độ làm việc | -25°C~60°C |
| Response spectrum | 400nm~700nm |
| Dải đo | 0~2500μmol/㎡·s |
| Quyết định | 1μmol/㎡·s |
| Độ chính xác | ±5%(1000umol/㎡·s, @550nm,60%RH,25℃) |
| Thời gian phản hồi | 0.1s |
| Linearity | ≤±1% |
| Sự ổn định hàng năm | ≤±2% |
| Chiều dài cáp | 60cm (customizable) |
The protection level of this photosynthetically active radiation sensor can reach IP67, which can ensure that the equipment will not be immersed in water for 30 minutes at a depth of less than 1m without water ingress. It is widely used in the research of meteorology, agriculture, air pollution, and other fields. If you need more information, please contact us.
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Độ chính xác cao
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.
chứng chỉ
Our PAR Sensor have various certifications, such as Chứng nhận ISO 9001, RoHS, FCC, CE v.v. Các sản phẩm này đã được Viện Đo lường Quốc gia kiểm định và đảm bảo độ chính xác và độ tin cậy.
Nhà sản xuất OEM
Chúng tôi là một Nhà sản xuất OEM, so we can offer you the best PAR Sensor price. We have big in stock, can ship immediately. If you are confused about which PAR Sensor to choose, we can assist you in finding the right sensor for your requirements. Contact us!
dịch vụ theo yêu cầu
Chúng tôi sở hữu các dây chuyền sản xuất quy mô lớn và đội ngũ nhân viên nghiên cứu và phát triển chuyên nghiệp. Do đó, chúng tôi có thể cung cấp dịch vụ theo yêu cầu, chẳng hạn như: logo, nhãn hiệu, hình thức, chức năng, v.v. Nếu bạn muốn thực hiện phát triển thứ cấp, chúng tôi có thể cung cấp cho quý khách một gói phát triển bổ sung.
Tuổi thọ sử dụng lâu dài
The overall housing of the Renke 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 or use the free cloud platform we provide. Easily access data remotely, so you can view data through computer/APP anytime, anywhere. Accurate indoor/outdoor PAR measurement.
FAQs - PAR Sensor
The spectral components of solar radiation that are effective for plant photosynthesis are called photosynthetically active radiation, with a wavelength range of 380-710 nanometers, which basically coincides with visible light. The proportion of photosynthetically active radiation in the direct solar radiation increases with the increase of the sun’s altitude angle, up to 45%. In the scattered radiation, the proportion of photosynthetically active radiation can reach as much as 60~70%.
It is better to measure PAR and total shortwave radiation (PYR); however, PAR can be estimated from total shortwave radiation by using a physically-based model.
PAR directly influences the rate of photosynthesis. Higher PAR levels generally promote faster plant growth, while insufficient PAR can slow growth, reduce yields, and cause weak plant structures. It is a critical parameter in agriculture, horticulture, and controlled environment farming.
veswe PAR sensor size as below:
1. Secure the sensor to the mounting bracket using screws through the mounting holes on the sensor.
2. Make sure the device is parallel to the ground (adjust the hand screw and check the level of the bubble to determine whether it is parallel).
3. After installation, remove the protective cover.
Our photosynthetic radiation sensors have been calibrated before leaving the factory, and can be used directly without the need for secondary calibration by customers.
For the par sensor that has been used in a windy and sandy environment for a long time, you can regularly wipe the sensor housing with a soft damp cloth to avoid the accumulation of sand and dust. Periodically check for level and for loose screws.
- 1. Response spectrum range: 400-700nm.
2. All-aluminum housing, IP67 protection.
3. Built-in level and adjustment knob for easy on-site adjustment.
4. Multiple output signal options.
5. High-quality cosine corrector ensures standard cosine response.
6. Wide-voltage power supply: DC7-30V.
1. Applied to plant photosynthesis research, vegetation index research, etc.
2. Application in greenhouse
3. Application in agricultural production
Standard PAR sensors measure total photon flux within 400–700 nm but do not provide spectral distribution. To measure specific wavelengths (e.g., red/blue ratio), a spectroradiometer is required.
Lux measures light intensity as perceived by the human eye, which is sensitive mainly to green light. PAR measures photon flux in the spectrum plants use for photosynthesis. Lux readings are not a reliable substitute for PAR in plant growth applications.
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Liên hệ với chúng tôi
Đồng nghiệp của chúng tôi: Jack
Điện thoại/WhatsApp: +86 13418148929
Email: contact@veswe.com
Địa chỉ: Tầng 1–4, Số 269 Đường Nanda, Phố Dashi, Quận Panyu, Thành phố Quảng Châu, Tỉnh Quảng Đông, Trung Quốc
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