PAR Sensor, RS485/4-20mA/0-2V/0-5V/0-10V

SKU: SUCH-RS-PAR
$149.88
● Measurement Range0-2500 μmol/m²·s ● 400-700 nm spectral range ● 0-2V/0-5V/0-10V/4-20 mA output signal ● -30°C to +75°C operating temperature
🚚 Free shipping
🕒 Delivery date: 6-12 days
🔁 30-day Returns
Overview

PAR sensor provides accurate measurement of photosynthetically active radiation within a 400–700 nm spectral range and a wide measurement range of 0-2500 μmol/m²·s. Designed with a high-precision silicon photodetector and durable metal housing, it offers high sensitivity, stable performance, and reliable operation under harsh outdoor conditions. With multiple output options including RS485, 4-20 mA, 0-2 V, 0-5 V, and 0-10 V, the SUCH radiation sensor integrates easily with data loggers and monitoring systems. Its versatile mounting design and −30°C to +75°C operating temperature make it ideal for agriculture, greenhouse control, environmental monitoring, and scientific research applications.

Feature

  • High-Precision Photosensitive Element: Photosynthetically active radiation sensor uses a silicon photodetector with a 400-700 nm optical filter to ensure high sensitivity and accurate measurement.
  • Easy Installation: The radiation sensor base includes six mounting holes—three for leveling screws and three for fixing the unit onto the support structure.
  • Durable Metal Housing: Made of robust metal materials for long-term reliability in outdoor environments.
  • Strong Waterproof Performance: Corrosion-resistant exterior designed to withstand harsh weather conditions for extended outdoor use.
  • High Sensitivity: Delivers rapid and responsive irradiance detection with stable performance.
  • Accurate Measurement: Ensures consistent, precise radiation readings suitable for scientific and industrial applications.
  • Convenient Integration: Directly compatible with digital voltmeters or data acquisition systems.

Dimension (Unit: mm)

PAR sensor size

Detail

Silicon solar radiation sensor detail

Specs
Measurement Range 0-2500 μmol/m²·s
Response Time < 1 s
Resolution 1 μmol/m²·s
Accuracy ±2%
Spectral Range 400-700 nm
Output Signal (Analog) 0-2V/0-5V/0-10V/4-20 mA (optional)
Output Signal (RS485) RS485, Modbus-RTU protocol (default address: 01)
Output Signal (SDI-12) SDI-12 (U.S. Geological Survey serial data communication protocol)
Power Supply (Analog 0-2 V, RS485, SDI-12) 5-24 V DC
Power Supply (Analog 0-5 V, 0-10 V, 4-20 mA) 12-24 V DC
Stability < ±2% change per year
Operating Temperature −30°C to +75°C
Operating Humidity < 100% RH
Application

Meteorological measurement

Meteorological Measurement

Energy radiation studies

Energy Radiation Studies

Environmental & ecological research

Environmental & Ecological Research

FAQ

A PAR sensor measures the amount of photosynthetically active radiation reaching a surface, usually expressed in µmol/m²·s. It is essential for evaluating plant growth environments.

PAR directly influences photosynthesis efficiency, which affects plant growth rate, biomass production, flowering, and yield.

No. Lux measures brightness as perceived by the human eye, while PAR measures photons used by plants. They cannot be directly converted without specific spectral information.

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