MONNIT Industrial Wireless PAR Light Meter
MONNIT Industrial Wireless PAR Light Meter is an industrial wireless PAR light meter designed to monitor the light available for plant photosynthesis. It measures Photosynthetic Photon Flux Density (PPFD) and calculates Daily Light Integral (DLI), providing useful data for managing grow lighting and crop light exposure. The sensor operates on the ALTA 433 MHz wireless platform and is suited to greenhouses, grow houses, growth chambers, aquaculture, aquariums and outdoor growing environments. Its industrial construction and included mounting hardware support practical installation in monitored growing areas.
The MONNIT Industrial Wireless PAR Light Meter measures light within the photosynthetically active radiation (PAR) spectrum, which is the portion of light relevant to plant photosynthesis. The sensor monitors light from indoor and outdoor sources, including LED lighting, and reports PPFD in micromoles per square metre per second (µmol/m²/s).
It also provides a Daily Light Integral (DLI) measurement. DLI represents the accumulated PAR light received by a square metre of growing area over a 24-hour period, giving growers another measurement for assessing daily light exposure.
How it works
- The PAR light sensor detects light across the specified 389 to 692 nanometre spectral range.
- It measures Photosynthetic Photon Flux Density (PPFD), showing the amount of PAR light reaching the monitored area.
- PPFD measurements are accumulated to produce a Daily Light Integral (DLI) value.
- The sensor transmits measurements wirelessly using the ALTA 433 MHz platform.
Why choose this product
- Provides measurements specifically related to light used in plant photosynthesis rather than general visible-light measurement.
- Gives both instantaneous PPFD information and accumulated DLI data.
- Wireless operation can simplify monitoring across growing areas where wired measurement points may be inconvenient.
- The industrial version includes mounting hardware, a pre-installed 3V industrial battery and an SMA antenna.
Benefits
- Helps growers assess whether plants are receiving the intended amount of useful light.
- Supports monitoring and adjustment of grow lighting.
- Can help identify changes in light exposure across growing environments.
- Provides useful light data for crop monitoring and smart agriculture systems.

