Precision PAR Measurement for Greenhouse & Horticulture Applications
The POLWAX PAR50 is a professional-grade Photosynthetically Active Radiation (PAR) sensor designed for accurate and continuous measurement of photosynthetically active radiation in the 400–700 nm spectral range. With a measurement range up to 2500 μmol/m²·s, ±3% Full Scale accuracy, fast response and flexible industrial outputs, PAR50 is designed for greenhouse monitoring, horticulture, vertical farming, agricultural research and controlled-environment applications.
Accurate PAR Measurement for Controlled Growing Environments
The POLWAX PAR50 PAR Sensor is designed to accurately measure Photosynthetically Active Radiation (PAR), the portion of light within the 400–700 nm wavelength range that is relevant to plant photosynthesis.
With a measurement range of 0 to 2500 μmol/m²·s and an accuracy of ±3% Full Scale, PAR50 provides dependable measurements for monitoring light availability in controlled agricultural and horticultural environments.
The sensor provides fast response of ≤1 second and supports multiple industrial output options including 4–20 mA, 0–10 V and RS485 Modbus RTU, allowing integration with PLC, SCADA, environmental monitoring and automated control systems.
Its IP65 protection, UV-resistant polymer housing, compact 50 mm × 80 mm sensor body and customizable 3-meter cable make PAR50 suitable for continuous deployment in greenhouses, vertical farms, research environments and outdoor agricultural monitoring applications.
PAR50 Technical Specifications
Technical specifications for the POLWAX PAR50 Photosynthetically Active Radiation Sensor.
| Specification | POLWAX PAR50 |
|---|---|
| Measurement Range | 0 to 2500 μmol/m²·s |
| Accuracy | ±3% Full Scale |
| Spectral Range | 400 to 700 nm |
| Response Time | ≤1 second |
| Power Supply | 12–24 V DC |
| Output Options | 4–20 mA, 0–10 V, RS485 (Modbus RTU) |
| Operating Temperature | -40°C to 85°C |
| Ingress Protection | IP65 |
| Housing Material | UV-resistant polymer |
| Cable Length | 3 meters (customizable) |
| Weight | 200 grams |
| Sensor Body | 50 mm diameter × 80 mm length |
| Mounting Thread | M20 × 1.5 |
| Communication Protocol | MODBUS RTU |
Built for Accurate PAR Monitoring
The PAR50 combines accurate photosynthetically active radiation measurement, fast response, flexible industrial connectivity and rugged construction for professional agricultural and environmental monitoring.
Wide PAR Measurement Range
The PAR50 measures photosynthetically active radiation from 0 to 2500 μmol/m²·s, supporting a broad range of controlled and high-intensity growing environments.
400–700 nm Spectral Range
The sensor covers the 400–700 nm wavelength range associated with photosynthetically active radiation and plant photosynthesis.
High Measurement Accuracy
With ±3% Full Scale accuracy, PAR50 provides reliable light measurement for monitoring and controlling growing environments.
Fast Response Time
A response time of ≤1 second enables fast measurement updates for dynamic lighting conditions and automated environmental systems.
Multiple Output Options
Supports 4–20 mA, 0–10 V and RS485 Modbus RTU outputs for integration with monitoring, automation and control systems.
IP65 Protection
The IP65-rated design provides protection against dust and water exposure for demanding agricultural and environmental monitoring applications.
UV-Resistant Housing
The UV-resistant polymer housing is designed for reliable operation in environments exposed to sunlight and changing outdoor conditions.
Flexible Installation
The compact 50 mm diameter × 80 mm length sensor body with M20 × 1.5 mounting thread supports convenient installation in monitoring systems.
Customizable Cable Length
The standard 3-meter cable can be customized to suit specific installation and system integration requirements.
PAR Monitoring Across Agriculture & Controlled Environments
The PAR50 provides continuous PAR measurement for agriculture, horticulture, greenhouse monitoring, vertical farming and research applications.
Greenhouse Monitoring
Monitor photosynthetically active radiation inside greenhouses to understand available light and support optimized growing conditions.
Horticulture
Measure PAR levels in horticultural environments to support plant growth monitoring and controlled cultivation practices.
Vertical Farming
Monitor light levels in vertical farming systems where controlled illumination is essential for consistent plant growth.
Indoor Agriculture
Measure PAR in indoor growing environments and controlled agricultural facilities for accurate light-level assessment.
Plant Growth Research
Provide reliable PAR measurements for agricultural research, plant science studies and controlled growth experiments.
Agricultural Automation
Integrate real-time PAR measurements with automated environmental control and agricultural monitoring systems.
Light Management Systems
Use PAR measurement data to monitor and manage artificial lighting and natural light conditions in controlled environments.
Environmental Monitoring
Collect continuous PAR data for environmental monitoring, field studies and outdoor light assessment.
Smart Greenhouse Systems
Connect PAR measurements with smart greenhouse systems for data-driven environmental monitoring and control.
Flexible Connectivity for PAR Monitoring Systems
The POLWAX PAR50 is designed for straightforward integration with agricultural automation, greenhouse control, environmental monitoring and industrial data acquisition systems.
- RS485 communication with Modbus RTU protocol
- 4–20 mA analog output
- 0–10 V voltage output
- PLC integration
- SCADA system integration
- Greenhouse automation systems
- Agricultural monitoring systems
- Environmental monitoring platforms
- Smart farming and IoT systems
Designed for Seamless Agricultural Integration
Choose the output configuration that best matches your greenhouse, horticulture, agricultural monitoring or environmental control system.
PAR50 Product Resources
Access technical documentation and product resources for the POLWAX PAR50 PAR Sensor.
Reliable PAR Measurement for Professional Growing Applications
The POLWAX PAR50 combines accurate PAR measurement, a 400–700 nm spectral range, fast response, flexible industrial outputs and rugged IP65 construction in a compact sensor designed for professional agricultural and environmental monitoring.
- 0–2500 μmol/m²·s measurement range
- ±3% Full Scale accuracy
- 400–700 nm spectral range
- ≤1 second response time
- 12–24 V DC power supply
- RS485 Modbus RTU communication
- 4–20 mA and 0–10 V outputs
- IP65 ingress protection
- UV-resistant polymer housing
- 3-meter customizable cable
- Compact 50 mm × 80 mm sensor body
- M20 × 1.5 mounting thread
PAR50 PAR Sensor FAQs
What does the PAR50 measure?
The PAR50 measures Photosynthetically Active Radiation (PAR), which represents light in the 400–700 nm wavelength range relevant to plant photosynthesis.
What is the measurement range of the PAR50?
The PAR50 has a measurement range of 0 to 2500 μmol/m²·s.
What is the accuracy of the PAR50?
The specified accuracy of the PAR50 is ±3% Full Scale.
What is the spectral range of the PAR50?
The PAR50 operates across a spectral range of 400 to 700 nm.
How fast does the PAR50 respond?
The specified response time of the PAR50 is ≤1 second.
Which output signals are available?
The PAR50 supports 4–20 mA, 0–10 V and RS485 Modbus RTU output options.
Can the PAR50 be connected to a PLC or SCADA system?
Yes. The RS485 Modbus RTU and analog output options allow the PAR50 to integrate with PLC, SCADA, agricultural automation and environmental monitoring systems.
Is the PAR50 suitable for greenhouse applications?
Yes. PAR50 is designed for PAR monitoring applications including greenhouses, horticulture, vertical farming, indoor agriculture and controlled growing environments.
What is the protection rating of the PAR50?
The PAR50 has an IP65 ingress protection rating for reliable operation in demanding agricultural and environmental environments.
What type of housing does the PAR50 use?
The PAR50 uses a UV-resistant polymer housing designed for reliable operation in environments exposed to sunlight and outdoor conditions.
What cable length is supplied with the PAR50?
The standard cable length is 3 meters and can be customized according to installation requirements.
What mounting thread does the PAR50 use?
The PAR50 uses an M20 × 1.5 mounting thread.
Measure PAR with Precision
The POLWAX PAR50 delivers accurate, fast and reliable Photosynthetically Active Radiation measurement for greenhouses, horticulture, vertical farming, indoor agriculture, plant research and environmental monitoring. With a measurement range up to 2500 μmol/m²·s, 400–700 nm spectral response, ±3% Full Scale accuracy, IP65 protection and flexible industrial outputs, PAR50 is designed for professional light monitoring and agricultural automation.