💖【Accurate Light Brightness Meter】 Check light level 0.1lux~200,000lux（0.01~20,000Fc）with high accuracy of ±4% of readings + 0.5%f.s. 1999 count display and 2 times/s sample frequency. Useful light lux tester to balance light output for indoor plants orchid, greenhouse,studios, restaurants, stage sets, home, factory and office. | 💖【Detachable Design & 360° Rotatable】Different from normal light measuring device, Kethvoz 881C light intensity tester is with light sensor detachable design. Not only can test light brightness as usual, but also can remove the photo detector from luxometro body and measure light source from any angle easily. | 💖【Portable lumen meter】Backlight HD Screen, Lux / FC(footcandles) switchable, 155g lightweight and 165 x 67x 32mm compact design, easy to take out for light illumination measurement during photography shooting. Footcandles(Fc)=Total Lumens(Lm) divided by (area in square feet). | 💖【Easy to Use】One button to freeze the light measurement data, convenient to record data during lighting measurement. Support Max Hold measure mode, help you to record & freeze the Max light value during measurement. | 💖【Calibrated Luxmeter】 Kethvoz luxometer have been strictly calibrated to a standard bulb with a colour temperature of 2856 K before shipping. 12 months warranty and lifetime technical support. Quality exposure meter with professional after-sales service.