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Accurate light measurement is crucial for a wide range of applications, from photography and videography to scientific research and industrial quality control. Selecting the right lab photometer or light meter ensures reliable data, consistent results, and optimal performance in your specific environment. This guide will help you navigate the key features and considerations to make an informed purchase.
ACCURATE and COST EFFECTIVE: The Phantom PHOTOBIO Advanced Quantum PAR Meter provides measurement for any light source used in horticultural applications.
MEASURES BROAD SPECTRUM: The Advanced Quantum PAR meter is designed to measure PAR (Photosynthetically Active Radiation) flux in wavelengths ranging from 400 to 700nm.
MAXIMIZE CROP YIELDS: There is a positive proportional relationship between the number of photons absorbed in 400 to 700nm band and the rate of photosynthesis.
COMPACT and COMPLETE main unit, remote sensor, two connection cables (short-coiled & 12’ long-straight), AAA batteries and protective carrying case.
Measure PAR and UVA Light Accurately. Measure PAR (400–750nm) and UVA (320–400nm) irradiance intensity to understand how your grow lights actually perform. The PAR sensor IC is manufactured by a well-known Japanese semiconductor company, delivering...
See the PAR Breakdown of Blue, Green, and Red. Unlike most PAR meters that only show a single value, AH-Quantuv displays the PAR contribution of Blue, Green, and Red separately. This helps growers better understand the spectrum of their grow lights and...
Understand How Spectrum Affects Plant Growth. Plants typically require more blue light during the seedling and vegetative stages, while higher red light supports flowering and fruiting. Viewing the spectrum breakdown helps growers adjust lighting to...
PAR Recording Function for Light Distribution Mapping. The built-in recording function allows you to log up to 100 PAR measurements, making it easier to evaluate the light distribution across your grow area and identify hotspots or low-light zones.
High Precision & Fast Response: This high-precision illuminance meter delivers lightning-fast readings 2 times per second, ensuring you get accurate light intensity data—perfect for creating the ideal growing environment for your plants.
FC/LUX Conversion: FC or LUX? The Power is in Your Hands! Effortlessly toggle between FC and LUX to measure light intensity in the unit that suits your gardening needs—precision made simple.
PEAK Data Recording: Instantly lock in and display the highest light pulse value with a single press of the PEAK button—perfect for measuring lightning, laser beams, and other brief high-intensity sources.
Low Battery Alert: Stay powered, stay prepared! A handy + - symbol appears when the battery runs low, so you’ll always know when it’s time to swap out the 9V battery and keep your light measurements going strong.
UNI-T professional digital illuminance meter UT383. Effectively measures light intensity and display results in units of Lux or FC. Range: 0 to 199,900 Lux / 0 to 18,500 Fc. High accuracy of +/-(4 %+8)
Compact & easy to use. Large 4 digital LCD screen with backlight. 0.5 s sampling time. Overload indication. Max/Min. Data hold. Low battery indicator. Auto shutdown for power saving
Portable value pack. What you get: 1 x UT383 mini light meter, 1 x packaging box, 1 x paper manual, 1 x e Manual (free download)
Effective & Versatile. Widely used in lightening enterprise, agriculture and animal husbandry, mining enterprise, laboratory, office, household, street lights construction, camera & studios, photography, etc
Compact & Portable Design for On-the-Go Monitoring - This pocket-sized meter easily fits in your hand or lab coat pocket, making it perfect for fieldwork, outdoor UV exposure checks, and laboratory measurements. Ideal for environmental scientists...
Measures Both UVA & UVB Light - Dual-sensor technology allows you to accurately track UVA and UVB intensity simultaneously, providing complete data for sun safety, materials testing, or indoor lighting evaluations.
Peak Hold, Min/Max, and Data Capture - Features peak hold, min/max, and real-time readings to capture fluctuations over time, enabling you to analyze trends, safety thresholds, and experimental data without missing critical UV peaks.
Backlit Easy-to-Read LCD Display - The large, backlit screen provides crystal-clear readings even in bright sunlight or dimly lit environments, ensuring your data is always visible wherever you work.
Dual-scale meter measures visible light from fluorescent metal halide high-pressure sodium and incandescent sources up to 200 000 lumens per square meter (lux) or 20 000 footcandles (fc)
Powered by a 9 V battery (included) and includes a 1 5-meter wire for positioning light sensor and a protective sensor cap
Manual ranging data hold freezes readings on the display maximum recording displays highest reading zeroing capability resets the null point and angled light cosine correction corrects for angled light
【Widely used】S8608 is a digital illuminometer, used for measuring visible brightness, large screen display, wide measuring range, up to 200000LUX, automatic conversion range. Can be widely used in such as schools, hospitals, factories, airports...
Measurement visible brightness, measurement range is wide
Exposures accurate down to a tenth-of-a-stop for both ambient and electronic flash light readings in full-stop mode.
At ISO 100 the ambient EV range is 0 to 19.9 flash f/stops range from f/1.0 to f/90.9 with a shutter-speed span of 60-seconds to 1/8000th-of-a-second (1 sec to 1/500th for flash).
Photo Mode: for still image photographers featuring shutter or aperture priority display of a full range of ambient and flash functions including cord and cordless flash measurement
HD Cine Mode: perfect for DSLR and mirrorless videographers who need to take exposure readings and control light using shutter speeds and frame rates
Last update on 2026-10-16 / Affiliate links / Images from Amazon Product Advertising API
How to Choose the Best Lab Photometers & Light Meters
User Interface and Connectivity
A user-friendly interface with a clear display is paramount for efficient operation, especially in demanding environments. Look for intuitive controls and easy-to-read screens. Some advanced models offer connectivity options such as USB or Bluetooth, allowing for data transfer to computers or mobile devices for analysis and reporting. This can be particularly beneficial for long-term monitoring or complex experimental setups.
Frequently Asked Questions
What is the difference between a photometer and a light meter?
A photometer specifically measures illuminance, which is the amount of light falling on a surface. A light meter is a broader term that can encompass devices measuring illuminance, luminance (light emitted from a source), and sometimes other light properties. For laboratory use, a photometer is often the more precise choice for measuring incident light.
How often should a light meter be calibrated?
Calibration frequency depends on the device's intended use and the manufacturer's recommendations. For critical applications requiring high accuracy, annual calibration is common. If the device is used frequently or subjected to harsh conditions, more frequent checks may be necessary to ensure reliable measurements.
What does spectral response mean for a light meter?
Spectral response refers to how sensitive a light meter is to different wavelengths of light. Ideally, a meter's spectral response should closely match that of the human eye (photopic response) for general illumination measurements. This ensures that the measured light levels accurately reflect what a person would perceive.
Can I use a photography light meter for laboratory work?
While some photography light meters can provide illuminance readings, dedicated lab photometers are generally designed for higher accuracy and specific measurement ranges required in scientific and industrial settings. It's best to choose a device tailored to your specific application's precision needs.
What are lux and foot-candles?
Lux (lx) and foot-candles (fc) are both units used to measure illuminance. Lux is the SI unit, defined as one lumen per square meter. Foot-candles are an imperial unit, defined as one lumen per square foot. 10.764 lux is approximately equal to 1 foot-candle.
What is data logging capability?
Data logging capability allows the device to automatically record measurements over a period of time. This is useful for tracking changes in light levels, analyzing trends, or documenting conditions for research or compliance. The recorded data can often be exported for further analysis.
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