can you measure the frequency of the flickering with this?

https://m.media-amazon.com/images/I/61I6tYKNmOL._AC_SL1164_.jpg To test the flicker rate of your monitor, simply push the "P" button on the unit and hold its sensor lens flat against your screen in one spot, without moving. The flicker rate should be less than 5%. If it's higher, adjust your Brightness and Contrast settings. Meanwhile, if you press the "E" button to test your monitor's brightness, it should be between 300 to 500 lx. For flicker rates of LED and condescend light bulbs, the manual includes recommended rates or contact us at Tech Support.

Where do I download the PC software?

From the company website here: https://quartarad.com/wp-content/uploads/2016/12/radexlight_setup.zip

can you measure the frequency (in Hz) of the flickering with this?

Flicker - aka Pulsation Rate of flickering (pulsation ration) indicates how much the illumination or brightness change in a given amount of time. It is measured as the difference between the median value vs highs and lows. Rr = (Emax-Emin)/2*Eav*100%. Unit of measurement is a percentage (%). Not Hz. The only pulsations that should be controlled or adjusted are 300 Hz or lower. Depending on the work type, the light flickering should not strain the eyes if it does not exceed 10% for visually-focused tasks, and is not higher than 20% for all other tasks. The office monitor should not flicker more than 5%. There is Windows-based software for the device that deals with Hz and helps with converting percentages into Hz: https://quartarad.com/wp-content/uploads/2022/02/Radex-Light-software.jpg

The price shows (count 63.98/count) and 127.95. Does this mean two items included?

No it is 127.95 per unit, cannot understand what those count means but the performance of this item cannot be lower like 63.98. I already bought 3.

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RADEX LUPIN Professional testing and calibration of monitors, Incandescent light bulbs and LED. Light Meter, Pulse meter and Lucimeter

RADEX LUPIN Professional testing and calibration of monitors, Incandescent light bulbs and LED. Light Meter, Pulse meter and Lucimeter

Product ID: 59695407

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Details

Brand
RADEX
Light type
LED
Special feature
Energy
Incandescent equivalent wattage
1E+2 Watts
Light colour
warm white

💡Measures brightness & light quality

📊OLED display with graphical data

🔋Rechargeable lithium battery

Description

💡 Illuminate your workspace, protect your eyes, and stay ahead of the light game!

SMART CONNECTIVITY - Seamlessly syncs with RadexLight software for detailed data transfer & analysis
EYE SKIN WELLNESS - Helps prevent fatigue by identifying harmful light flicker and poor monitor quality
ERGONOMIC PORTABLE - Compact, lightweight design fits your pocket for on-the-go professional use
VERSATILE COMPATIBILITY - Accurately tests LED, incandescent, fluorescent, halogen & more light sources
PRECISION LIGHT ANALYSIS - Detects brightness, twinkle rate & luminous flux with human-eye spectral sensitivity

The RADEX LUPIN is a professional-grade light meter designed for precise measurement of brightness, flicker rate, and luminous flux across various light sources including LED, incandescent, and fluorescent bulbs. Featuring a high-contrast OLED display, ergonomic pocket-sized design, and rechargeable lithium battery, it offers on-the-go convenience. Its spectral sensitivity mimics the human eye, ensuring accurate readings that help reduce eye strain and fatigue. With RadexLight software integration, users can easily transfer and analyze data on their PC, making it an essential tool for professionals focused on lighting quality and health.

Specifications

Manufacturer	RADEX
Part Number	LUPIN
Product Dimensions	10.16 x 1.27 x 3.81 cm; 36.85 g
Item model number	LUPIN
Colour	Black
Power Source	Battery Powered
Voltage	240 Volts
Item Package Quantity	1
Number of Pieces	1
Type of Bulb	Fluorescent, Halogen, Incandescent, LED
Certification	CE
Special Features	Energy Efficient
Batteries included?	No
Batteries Required?	No
Battery Cell Type	Lithium Polymer
Battery description	battery_type_aaa
Average Battery Life	6 Hours
Item Weight	36.8 g

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