It also includes a database of common houseplants and their lighting requirements that may be especially useful for beginners.
#Light meeter professional#
The Plant Light Meter app is well-made and backed by a professional and active developer. Tolerable for Beginners: Plant Light Meter
#Light meeter full#
We offer a plant light meter app that is accurate, freeand full of other helpful resources and can fully and confidently recommend to use our grow light meter app for any plant light measurement desires.
#Light meeter for free#
The app can be used for free and also includes additional measurements, content, and fast 24 hour support with the optional Pro subscription. Photone also includes helpful guides and a calculator for cannabis, houseplants, and fruits and vegetables to assist you with your grow lighting decisions. We knew that Photone is the only plant light meter app on the App Store that is measuring even close to accurate – yet still we were blown away by the inaccuracy of all the other plant lighting apps. The Photone - Grow Light Meter is our own app and we don't want to advertise you anything without our full backing. Recommended for Everyone: Photone - Grow Light Meter You can find the detailed measurements and how we took them towards the end of this article. Our tests revealed that only two apps do so and that's why they're at the top of our recommendations.Ī small error is to be expected as no light meter exactly measures the same, but any error exceeding 10% becomes noteworthy whereas errors upwards of 30% even become dangerously critical. iOS App Accuracy ComparisonĪs we are first and foremost comparing light meters, they need to measure accurately. As we all know by now, we want to measure PAR / PPFD for our plants and there is only one app able to measure PAR / PPFD, so we’ve included other illuminance-based plant light meter apps from the App Store into our comparison as well. Most of them are targeted to be used in photography while some of them act as a simple illuminance meter. iOS Plant Light Meter App RecommendationĪ quick search on the App Store reveals many light meter apps. We’ll cover each of these criteria in our subsequent test and recommendation to gain you the peace of mind needed when it comes to choosing your light meter app. The plant light meter shall be well maintained (supporting the latest devices, offering support, etc.).The plant light meter shall be cost-efficient.The plant light meter shall be accurate and precise.The plant light meter shall measure PAR as PPFD.The plant light meter shall be easy-to-use.For amateurs and professional growers alike, we identified the following criteria: What Makes a Good Plant Light MeterĪs a baseline for our test, we first need to identify what makes a good plant light meter – or in this case specifically: A good plant light meter app. So keep this in mind when tinkering with light meters for your plant lighting. Gauging the light correctly is crucial and an inaccurate light meter can be extremely dangerous. Some plants are more fragile than others, however, whenever artificial lighting is involved, using your grow light wrong may not only hurt your plants but your wallet as well. Lighting is such an important and decisive factor between a plant that thrives and a plant that dies off. Bad Light Meters Hurt Your Plants, Your Wallet, Or Both To spare you all of this, we’ve expertly tested many light meters in our lab and share the results within this article. Cheap and inadequate light meters bring problems such as inaccurate factory calibrations, nonlinear behavior, bad repeatability, or even peaking measurements when the light is just too bright. Fortunately enough, you shouldn’t have to worry about this as this is usually done at the factory.
In order to measure absolute light intensities accurately, the light meter must be calibrated to a trustworthy reference. It is using specialized photodetectors that capture light particles (photons) within a specified spectrum to measure illuminance or PAR. Light Meter Knowledge: A Quick IntroductionĪ light meter is measuring the amount of light reaching a surface such as your plants’ leaves. If you want a deeper explanation of illuminance and PAR, we recommend our article on exactly that and the article about the daily light integral (DLI) to learn more about plant lighting. Optimal plant lighting means that your plants receive the right kind of light (PAR), with the right intensity (PPFD), for the right duration (photoperiod) and the right amount (DLI) of it.
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