Updated October 2021
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BestReviews spends thousands of hours researching, analyzing, and testing products to recommend the best picks for most consumers. We only make money if you purchase a product through our links, and all opinions about the products are our own. Read more  
BestReviews spends thousands of hours researching, analyzing, and testing products to recommend the best picks for most consumers. We only make money if you purchase a product through our links, and all opinions about the products are our own. Read more  
BestReviews spends thousands of hours researching, analyzing, and testing products to recommend the best picks for most consumers. We buy all products with our own funds, and we never accept free products from manufacturers.Read more 
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HOW WE TESTED

We recommend these products based on an intensive research process that's designed to cut through the noise and find the top products in this space. Guided by experts, we spend hours looking into the factors that matter, to bring you these selections.

30
Models
Considered
100
Consumers
Consulted
8
Hours
Researched
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UV meters measure the ultraviolet light in a particular area, providing valuable data. Using a UV meter can help you find areas where high UV levels are occurring before they cause damage. Most UV meters will measure the intensity of the ultraviolet light between 250 and 400 nanometers. UV light falling in this range can be beneficial for seed germination and for plant growth. However, too much ultraviolet light can cause toxicity for plants and damage to other items. Many UV meters can take measurements regularly throughout the day, giving you key information. Most UV meters have a digital display screen for instant viewing of results. Those who have UV filters installed even can use the UV meter to ensure the filter is working as expected.

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