Light is an essential element of photosynthesis and overall plant development as it impacts numerous factors including plant form and structure, plant orientation, and reproduction. PAR meter is a sensor for measuring photosynthetic active radiation. It helps determine the amount of light the plants are exposed to.
Aranet PAR sensor with Apogee quantum meter is compatible with Aranet Cloud. Learn more
Preliminary information.
Subject of change without notice.
| Aranet PAR Sensor with Apogee quantum meter | |
| Measurements | Photosynthetically Active Radiation (PAR) |
| Line of Sight Range | Up to 3 km / 1.9 mi |
| Operating environment | Indoor and Outdoor use |
| Transmitter power | 14 dBm |
| Frequency | Depends on base station instructions |
| Measurement repeatability | Less than 0.5 % |
| Long-term Drift | Typically, less than 1 % per year with a 2 % maximum |
| Non-linearity | Less than 1 % (up to 4000 μmol m⁻² s⁻¹) |
| Field of View | 180° |
| Spectral Range | 389 to 692 ± 5 nm |
| Directional (Cosine) response | ± 5 % at 75° zenith angle |
| Data transmission | 1, 2, 5, 10 minutes |
| Data resolution |
1 μmol m⁻² s⁻¹ (PPFD) |
| Data protection | Data encryption |
| Power options | 1 AA Alkaline battery (Zn/Mn02) |
| 1 AA Lithium battery (Li/FeS2) | |
| Alkaline Battery life @20°C / 68°F | Up to 5 years |
| Lithium Battery life @20°C / 68°F | Up to 7 years |
| Operating temperature w Alkaline | -20°C to 55°C (-4°F to 131°F) |
| Operating temperature w Lithium | -35°C to 60°C (-31°F to 140°F) |
| Operating humidity | 0% to 100% PAR meter can be submerged in water up to depths of 30 m (98.4ft) |
| Dimensions | Sensor body – 35mmØ x 120mm (1.4”Ø x 4.7”) |
| PAR meter – 24mmØ x 37mm height (0.9” Ø x 1.5”) | |
| PAR meter bracket – 83.8 mm x 62.1 mm (3.3 ” x 2.4”) | |
| Weight | 580g (20.5oz) w Alkaline battery and PAR meter bracket |
| 572g (20.2oz) w Lithium battery and PAR meter bracket | |
| Construction | Sensor body – ASA Plastic |
| PAR meter – Anodized aluminum body with acrylic diffuser | |
| Protection class | IP68 |
| CE/FCC/IC marking | CE, FCC |
| Included | 1 AA Alkaline battery, string |
| Cable length | 0.2m (0.65ft) |
| Compatible base stations | Aranet PRO (from sw v1.4) |
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