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POLWAX PAR50 PAR Sensor

PAR Sensors · Atmos Series

PAR50 PAR Sensor

Model PAR50

Photosynthetically active radiation sensor, 400–700 nm, 0–2500 µmol/m²·s, with 4–20 mA, 0–10 V or RS485 output.

Range
0 to 2500 µmol/m²·s
Spectrum
400 to 700 nm
Accuracy
±3 % full scale
Protection
IP65
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Overview

The POLWAX PAR50 is a high-precision Photosynthetically Active Radiation (PAR) sensor that measures light intensity within the 400 to 700 nm spectrum — the key range for photosynthesis. It is used in agricultural, horticultural and environmental research applications.

Key features

  • PAR measurement over 400–700 nm
  • Range 0–2500 µmol/m²·s, ±3 % full scale
  • 4–20 mA, 0–10 V or RS485 Modbus RTU output
  • UV-resistant housing with M20 × 1.5 mounting thread
  • 3 m cable (customisable)

Technical specifications

Measurement ranges & outputs

Measurement ranges and outputs
Measurement range0 to 2500 µmol/m²·s
Accuracy±3 % full scale
Spectral range400 to 700 nm
Response time≤1 seconds
Output options4-20 mA, 0-10 V, RS485 (Modbus RTU)

Power supply & connectivity

Power supply and connectivity
Power supply12-24 V DC
Cable length3 metres (customisable)

Installation & environment

  • Select a mounting location with an unobstructed view of the light source.
  • Mount the sensor securely using the M20 × 1.5 thread.
  • Connect the wiring and calibrate if needed (datasheet installation guide).
Installation and environment
Mounting threadM20 × 1.5
Sensor body50 mm diameter × 80 mm length
Housing materialUV-resistant polymer
Weight200 g
Ingress protectionIP65
Operating temperature-40 °C to 85 °C

Specifications are subject to change. Please check the current datasheet or ask our team before ordering.

Technical resources

PAR50 PAR Sensor

Access product datasheets, user manuals, software and technical documentation in your preferred language.

Technical Datasheets

Product enquiry

Request a quote for PAR50 PAR Sensor

Tell us about your application — what you need to measure, the range, number of points and where the instrument will be installed. Our team will reply with a recommendation and quotation.

  • Technical advice on model and options
  • Quotation for your quantity
  • Datasheets and documentation on request

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Range
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Resolution
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Outputs
4–20 mA, 0–10 V, RS485
Protection
IP65

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