Best Light Measurement of 2025

The GAIN EXPRESS PAR Meter offers precise measurement of Photosynthetic Photon Flux Density (PPFD) from 0 to 5000 μmol/m²/sec, making it ideal for assessing plant growth conditions. With its large display, you can easily read measurements and analyse MAX, MIN, and AVG values. The device features dynamic measurements that continuously record data while in motion, ensuring accurate results. Additionally, it can log up to 100 measurements, allowing you to track your readings over time effortlessly.

The Quantum PAR Meter is a reliable tool for measuring light energy crucial for photosynthesis. With a measurement range of 0 to 5000 μmol/m²/sec, it ensures accurate readings within the 400-700nm spectrum. Its record function allows you to store up to 100 values, making it easy to track changes over time. The real-time display of the last four measurements provides immediate insights, helping you make informed decisions about your plants' needs. Additionally, its tripod socket enhances stability during measurements, allowing for precise data collection.

The Testo 540 Light Meter is designed for quick and easy light measurements in the workplace. Its sensor mimics the spectral sensitivity of the human eye, ensuring accurate readings that you can trust. With the hold function, you can conveniently freeze the current measurement for later reference. Additionally, the device tracks minimum and maximum values, making it easier for you to assess lighting conditions over time. A handy protection cap is included, adding to its portability and durability.

The Solarmeter 6.5 UV Meter is an essential tool for anyone who enjoys outdoor activities. With its accurate UV index readings, you can take the necessary precautions to avoid sunburn and protect your skin while enjoying sports, swimming, or hiking. It's designed to help you monitor UV levels, ensuring safety for you and your family's delicate skin. This compact device is easy to use with a simple button operation and features a clear LCD display for quick readings, making it convenient for everyday use.

The VABIRA VBR-100 PAR Meter offers accurate measurements of Photosynthetically Active Radiation (PAR) and Photosynthetic Photon Flux Density (PPFD) for both red and blue light. You can calculate Daily Light Integral (DLI) when PPFD is stable, helping you optimise plant growth. By recording PPFD data at various points, you can ensure even light distribution, promoting balanced growth and higher yields. This product also identifies weak spots, allowing you to adjust light placement effectively, reducing energy consumption and preventing potential light-related issues.

The Extech LT40 Light Meter is an essential tool for measuring white LED and standard lighting in Lux or Foot-Candle units. With its built-in sensor protected by a cover, you can easily take accurate readings without worrying about damage. The 4000 count LCD display ensures that you can read measurements clearly, while cosine and colour corrected measurements provide precise results tailored to your needs. This handy device also features Min/Max Average and Auto Power Off functions, making it both convenient and efficient for everyday use.

The KIMISS SM206 Meter is an advanced solar power meter that accurately measures sunlight intensity. You can select between two measurement units, W/m² and Btu, ensuring you have the most suitable option for your needs. The maximum value hold function allows you to capture the highest measurement for easy reference, while the data hold function makes it simple to freeze readings on the display for analysis. With its long-lasting measurement stability, you can rely on consistent results over time.

The Klein Tools ET130 Light Meter is a user-friendly device that allows you to monitor light levels effectively. It provides measurements in both foot candles and Lux, ensuring you can choose the unit that suits your needs best. With both auto and manual range capabilities, you can measure up to 4000 FC or 40,000 Lux, making it versatile for various environments. The backlit LCD display with a 40-segment bar graph offers clear visibility of readings, even in low-light conditions, enhancing your overall experience when checking light levels.

The PHOTOBIO Quantum PAR Meter is an essential tool for measuring light intensity, specifically Photosynthetically Active Radiation (PAR) from 400 to 700 nm. Its portable design and highly accurate remote quantum sensor make it simple to use, allowing you to record up to 99 readings effortlessly. This device is crucial for understanding the relationship between light and plant photosynthesis, enabling you to monitor plant health effectively. With both short coiled and long straight connection cables included, you will find it convenient to set up and operate.

The VABIRA VBR-Plant PAR Meter is an essential tool for testing the Photosynthetically Active Radiation (PAR) of grow lights across various colours. With its accurate sensor from a renowned Japanese semiconductor company, you can easily assess the PAR levels of blue, green, and red light separately. This allows you to optimise plant growth by understanding how different light colours affect your plants. Additionally, the device logs up to 400 historical PAR data points, recording Daily Light Integral (DLI) for 28 days, helping you track and analyse your plants' light exposure over time.