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    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
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    🚚 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

    pdf computingStainless Steel Temp and Humidity Sensor for Duct User Manual.PDF

    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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