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
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 range | 0 to 2500 µmol/m²·s |
|---|---|
| Accuracy | ±3 % full scale |
| Spectral range | 400 to 700 nm |
| Output options | 4-20 mA, 0-10 V, RS485 (Modbus RTU) |
Power supply & connectivity
| Power supply | 12-24 V DC |
|---|---|
| Cable length | 3 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).
| Mounting thread | M20 × 1.5 |
|---|---|
| Sensor body | 50 mm diameter × 80 mm length |
| Housing material | UV-resistant polymer |
| Weight | 200 g |
| Ingress protection | IP65 |
| Operating temperature | -40 °C to 85 °C |
Specifications are subject to change. Please check the current datasheet or ask our team before ordering.
Applications & industries
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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