KYORITSU LIGHT METER KEW 5204
- Detachable and Rotatable Sensor
- LED Illuminance Measurement Verified
- Large Backlit LCD Display
- Auto-Ranging for Wide Measurements
Did you like this product? Add to favorites now and follow the product.
(+86) 132-6243-8118 Start Live Chat
Description
The Art of Precise Light Measurement
The device you’ve described is a specialized digital lux meter designed for Wide Range Illuminance Measurement 0.0 lx to 199900 lx. In today’s world, where lighting profoundly impacts everything from productivity and safety to comfort and health, this instrument is an essential tool for professionals. It is engineered to provide highly accurate and reliable readings of light levels, enabling users to ensure compliance with a variety of lighting standards. The meter’s exceptionally broad measurement range makes it suitable for an incredibly diverse set of applications, from assessing the illumination in a dimly lit art gallery to measuring the intense brightness of a sunlit outdoor space.
A key feature that distinguishes this lux meter is its detachable and rotatable light sensor. This design provides unparalleled flexibility in the field. A technician can place the sensor precisely where the measurement needs to be taken—for instance, on a work surface or in a difficult-to-reach corner—while holding the main display unit in a comfortable and visible position. The rotatable head ensures that the sensor can be aligned perfectly to the light source, minimizing measurement errors that can occur when the sensor is not correctly oriented. This thoughtful design element is a major advantage for professionals who need to take precise measurements in complex or constrained environments, ensuring consistency and accuracy in every reading.
Key Features for Professional Use
The lux meter is built with several functions to streamline professional work. Its Large LCD with Backlight ensures that readings are easily visible, regardless of the ambient lighting conditions. This is a critical feature for anyone working in a variety of environments, from bright daylight to poorly lit mechanical rooms. The Data Hold Function allows a user to freeze the current reading on the screen. This is particularly useful for taking measurements in challenging locations where it’s difficult to simultaneously hold the meter and read the display. The user can take the measurement, activate the hold function, and then move to a more convenient spot to record the value.
The device also includes MAX/MIN functions, which are invaluable for comprehensive lighting analysis. By enabling this feature, the meter automatically tracks and displays the highest and lowest illuminance values recorded during a measurement session. This is perfect for auditing lighting systems to identify fluctuations in light levels over time, which can be caused by changes in natural light, a flickering bulb, or a failing ballast. This data helps professionals ensure that a space maintains a consistent illuminance level, which is crucial for preventing eye strain and improving overall productivity. The meter’s swift response time, with auto-ranging taking 5 seconds or less, ensures efficient and timely data collection.
Specialized LED Illuminance Measurement
A critical and modern feature of this lux meter is its verified ability to measure LED illuminance. With the widespread adoption of LED lighting, which often uses pulsed light, older lux meters can produce inaccurate readings. This device, however, has been specifically tested to provide accurate measurements of the typical illuminance, frequency, and duty ratio of pulsed white LEDs. This capability makes it an essential tool for lighting designers, electricians, and facility managers who work with modern lighting systems. Ensuring that LED lighting meets the required standards is vital for both energy efficiency and for creating a comfortable and productive environment.
The lux meter is designed for reliable and consistent performance, adhering to the highest standards. It meets both JIS C 1609-1:2006 and IEC 61326 standards, a testament to its quality and robust construction. The meter’s accuracy is specified at ±4%rdg±5dgt at 23°C, and it boasts excellent cosine characteristics, with minimal angle deviation. This ensures that the meter’s readings are consistent and accurate even when the light source is not perfectly perpendicular to the sensor. The spectral sensitivity of the silicon photo diode is calibrated to closely match that of the human eye, with only a 9% deviation, making the measurements a reliable representation of what a person would perceive.
A Multitude of Practical Applications
This digital lux meter has a wide range of practical applications across numerous industries. For workplace safety, it is used to verify that light levels meet occupational health and safety standards. Insufficient lighting can lead to accidents and fatigue, so a reliable lux meter is a critical tool for risk assessment. In facility management, it is used for regular lighting audits to ensure that the installed lighting systems are operating at optimal levels. This helps to identify areas where lights may be failing, or where illumination is either too high (wasting energy) or too low (creating an unsafe environment).
The meter is also an essential tool for lighting design and installation. Architects and lighting designers use it to validate their designs, ensuring that the illuminance levels in a new building or renovation project meet the specific requirements for different tasks. Electricians and contractors use it during installation to confirm that new fixtures are correctly positioned and that the light output is as expected. In the field of horticulture and agriculture, lux meters are used to monitor light levels for plant growth, ensuring that crops receive the optimal amount of light for photosynthesis.
For professionals seeking to purchase this top-tier lux meter, the tpt24 online store offers an unparalleled experience. It has established itself as the premier global online retailer for this product, earning a reputation for its steadfast commitment to authenticity and quality. Every purchase from tpt24 is backed by a guarantee that the product is 100% genuine and has passed rigorous quality checks. Their robust logistics network ensures that, no matter your location, the meter will be delivered securely and reliably. This dedication to certified quality and exceptional service makes tpt24 the undeniable choice for professionals around the world.
Thoughtful Design and Portability
The lux meter is designed for maximum convenience and durability. It is powered by two standard AA batteries, a common and easily replaceable power source. The auto power off function, which shuts the device off after 30 minutes of inactivity, helps to conserve battery life, a thoughtful detail for busy professionals. The device’s compact dimensions (169 x 63 x 37 mm) and light weight (approx. 210g) make it highly portable. The included carrying case (9195) further enhances its portability and protects the instrument from damage during transport and fieldwork.
The detachable sensor is connected to the main unit by a cable that can be adjusted from approximately 260mm to 1000mm. This long, adjustable cable provides exceptional reach, allowing the user to take measurements in hard-to-access areas without having to climb or stretch. The lux meter’s robust construction and reliable performance, even in a wide range of operating temperatures and humidity, make it a dependable tool for demanding professional environments. Its compliance with international standards assures users of its quality and safety.
Specifications
| Measuring Range | 0.0 to 199900 lx | |
|---|---|---|
| Range | 199.9/1999/19990/199900 lx | |
| Resolution | 0.1 lx | |
| Light detector | Silicon photo diode | |
| Accuracy | ±4%rdg±5dgt(23℃±2℃) | |
| Angle deviation from cosine characteristics |
10°±1.5% 30°±3% 60°±10% 80°±30% |
|
| Relative spectral sensitivity characteristics |
Deviation from spectral luminous efficiency:9% |
|
| Response time | Auto-ranging:5s or less Manual ranging:2s or less |
|
| Power source | R6/LR6(AA)(1.5V) x 2 | |
| Auto power off | 30 min. | |
| Operating temperature and humidity range | 0 to 40°C,relative humidity 80% or less(no condensation) | |
| Storage temperature and humidity range | -10 to 60℃,relative humidity 70% or less(no condensation) | |
| Applicable Standards | IEC 61326, JIS C 1609-1:2006 | |
| Dimension | 169(L)x63(W)x37(D)mm | |
| Weight | Approx. 210g | |
| Ceble length | Approx. 260 to 1,000mm | |
| Accessories | 9195 (Carrying case) Instruction Manual LR6(AA)×2 |
|







