Description
PQS1 PAR Quantum Sensor
The Kipp and Zonen PQS1 PAR photosynthesis sensor (quantum senor) accurately measures the amount of photosynthetically active radiation. The photosynthesis sensor is ideal for agricultural studies and research.
The mounting flange incorporates bubble leveller and adjustment screws, for easy leveling. A threaded hole takes the accessory screw-in mounting rod for fitting to masts and poles. Two PQS1 PAR sensors can easily be bolted back-to-back, and fitted with the mounting rod, to make a simple PAR albedometer.
The standard cable length is 5 m, with an option of 15 m. PQS1 is ideal for use with the METEON handheld display and data logger for field test use.
SQS1 PAR – Photosynthesis sensor – Specifications:
| Spectral range (50% points) | 400 to 700 nm ± 4 nm |
| Sensitivity PQS 1 | 4 to 10 µV/µmol/m²·s |
| Impedance | 240 Ω |
| Response time PQS 1 (95%) | < 1 µs |
| Non-stability (change/year) | < 2 % |
| Non-linearity (0 to 10,000 µV/µmol/m²·s) | < 1 % |
| Directional response (up to 80° with 1000 µmol/m²·s beam) | < 30 µmol/m²·s |
| Temperature response | < -0.12 % |
| Field of view | 180 ° |
| Operational temperature range | -30 °C to +70 °C |
The instrument is designed for continuous outdoor or indoor installation. Perfect sensor for photosynthesis studies of crop growth in greenhouses for example. Widely used in Australia for agricultural monitoring and research.
For pyranometers and other irradiance sensors from Kipp and Zonen please see here.
