Industrial Wireless PAR Light Sensor – Photosynthetically Active Radiation

The ALTA® Wireless PAR Light Meter is designed for precision monitoring of Photosynthetically Active Radiation (PAR) — the light spectrum essential for photosynthesis and healthy plant development. This sensor measures Photosynthetic Photon Flux Density (PPFD) in µmol/m²/s, giving growers accurate insights into light intensity, duration, and overall exposure.

Ideal for greenhouses, vertical farms, and research applications, this wireless sensor also calculates the Daily Light Integral (DLI)—a key metric for managing plant light requirements. Whether monitoring natural sunlight or artificial grow lights, this sensor provides real-time data and configurable threshold alerts to optimize plant health and maximize yield.

⚠️ Note: Requires a compatible Monnit gateway and may require software. See our Gateway & Software section or explore complete sensor kits for setup.

Key Features:

• Measures PPFD (µmol/m²/s) for PAR light intensity

• Range: 0 to 4000 µmol/m²/s

• Resolution: 0.1 µmol/m²/s

• Accuracy: ±6%

• Produces Daily Light Integral (DLI) for cumulative exposure

• Detects light presence/absence

• Configurable alerts for under- or overexposure

• Wireless communication and long battery life

Applications:

• Greenhouses and horticulture lighting control

• Indoor farming and hydroponics

• Agricultural research and crop trials

• Nursery operations and plant propagation

• Monitoring grow light performance and natural light trends