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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.
✅RELIABLE TESTER: The measurement range is between 0 and 5000 μmol/m²/sec. The cut-on wavelength is 400 nm and the cut-off wavelength is 700 nm with a tolerance of ±10 nm, which indicates that the meter is designed to measure the PAR within this...
✅RECORD FUNCTION: It has the capability to store up to 100 measured values. This allows the user to easily track and review previous readings, providing a record of the changes in PAR over time. Additionally, it has a real-time display feature that...
✅USAGE: A PAR meter is a valuable tool for growers, scientists, and researchers, providing accurate and reliable measurements of the amount of light energy available for photosynthesis, allowing for improved plant growth, increased energy efficiency...
✅TRIPOD SOCKET: It comes with a tripod socket to provide a convenient and practical way to securely attach the meter to a tripod (not included in the set), ensuring stability and accuracy during measurements, and providing greater flexibility in taking...
✅ON THE GO TESTER: Portable, easy-to-use, flexible, and convenient tool for measuring PAR levels. It is a compact and lightweight design making it easy to carry the meter from one location to another, allowing for measurements to be taken in different...
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.
Versatile Usage: Ready for any setting! Whether indoors or outdoors, this meter is perfect for homes, offices, factories, or measuring sunlight intensity to create the perfect environment for your plants to thrive.
PAR Measurement: Measures Photosynthetic Photon Flux Density within a range of 0 to 5000 μmol/m²/sec; across 400±10nm to 700±10nm wavelengths; Features a large display for easy reading; offering MAX/MIN/AVG data functions for comprehensive analysis`
Dynamic Measurements: This mode continuously records measurements as you scan an area until you hold or power off; AVE (average); MAX (maximum) and MIN (minimum) values are calculated from these dynamic readings; Data is stored internally for analysis...
Advantages of a PAR Meter: Accurate Light Measurement: Quantum PPFD sensor provide precise measurements of light intensity in the range that plants use for photosynthesis. By using a PAR meter, growers can ensure that plants receive the right amount of...
Monitoring Light Levels: Users can monitor changes in light intensity over time and adjust growing conditions accordingly to prevent overexposure or underexposure to light. With accurate light measurements, growers can optimize energy consumption and...
PAR meter is a valuable tool for anyone involved in indoor gardening, horticulture, or plant research, offering precise measurements and insights into optimizing light conditions for plant growth and health
Lighting accuracy: plus or minus 3% plus or minus 10 dgts (<10000 LUX), plus or minus 4% plus or minus 10 dgts (>10000 LUX)
EXTRA LARGE RANGE Our digital illuminance meter has a wide measuring range of up to 200,000 LUX. The highly sensitive illuminance sensor ensures accurate and fast response with a sampling frequency of up to 2 times per second.
User-friendly design: Easily switch between the two main units of illumination intensity - LUX and FC - as needed. The LCD display ensures clear vision, the backlight ensures the readability of the meter even in dark environments.
Multifunctional: With our meter, you can not only measure the current brightness, but also the maximum and minimum values. With the data hold function, you can freeze the reading on the display, which can be useful when you need to record the measurement.
ENERGY EFFICIENT The meter has an automatic shut-off function which helps to save battery when not in use. A low battery indicator lets you know when it's time to change the battery so that the meter is always ready to use.
Wide Application Our gauge can be used in schools, hospitals, factories, airports, families and other occasions for brightness measurement, and is an indispensable measuring tool for professionals, academics and hobbyists.
The product requires 3 x AAA batteries to work with which are NOT included
UNI-T professional digital illuminance meter UT383BT. Effectively measures light intensity and display results in units of Lux or FC. Range: 0 - 199,900 Lux / 0 - 18,500 Fc. High accuracy of +/-(4 %+8)
IOS/Android APP & Free download. Breeze through data recording, export, storage and analysis. Measurement data is transfered through Bluetooth to iENV App
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
Effective & Versatile. Widely used in lightening enterprise, agriculture and animal husbandry, mining enterprise, laboratory, office, household, street lights construction, camera & studios, photography, etc
Portable value pack. What you get: 1 x UT383BT mini light meter, 1 x App, 1 x paper manual, 1 x e Manual (free download)
Customer Support Available: Access to UNI-T 24/7 one-to-one user support via email with dedicated customer service team for troubleshooting and assistance
☀【0.4 SECOND RESPONSE】2~3 times sampling per second, Instantly to measure out how much lights you’re getting
☀【WIDE MEASURE RANGE】 This light meter can measure luminance at 0.01~300,000 Lumens, (0.01~30,000 Foot Candles), Which is much wider than the others. Resolution 0.01
☀【EASY TO USE】The light sensor can be rotated 270º, so you don’t need to turn around the light meter to measure lights from different angles. Just rotate the sensor, and you can still read the measure at front
☀【MEMORIZE THE LIGHT READINGS】This Lux Meter can help you record 33 sets of readings,Temp Testing, The RELATIVE measuring mode will show you the difference between current / recorded data. Ideal to use at home, garden, aquarium,plants, school...
Last update on 2026-09-01 / 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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