BTMETER BT-881D Digital Illuminance Light Meter, Measure Lights 0.01~400,000 Lux (0.01~40,000 FC) Foot Candles Luxmeter with 270º Rotated Sensor for Plants LED Lights Indoor Outdoor Light Tester

Very easy to put put together.Digital backlight bright.Very happy w this purchase and black organization pouch.It comes with it own screwdriver. I screw is tiny, set up your space before assembly. Customer service is prompt and responsive.

This light meter is very good. It is easy to use and it gave me the resultsI needed for my light study. I would recommend this to others if they needed aquality light meter

Simple, easy to use, and works as advertised. Comes with a decent case for storage. Nice product.

Worth your money..easy to use as well

At noon in full sunlight at 6000 feet in New Mexico, when held normal to the sun, it measures 104,200 lux, which is accurate. The temperature sensor is a few degrees off though. When you turn it off and back on, it does not remember which temperature unit it was last set to and defaults to Celsius. All of the other functions seem to work well. It can also be zeroed out for more accurate low light measurements.This device measures lux, not lumens!

Appears to be reading about 50% of the correct value, compared with a professionally calibrated professional Minolta light meter. It also reads about 55,000 lux (meter oriented normal to the sun) in direct sunlight at 11:00AM (maybe the atmospheric attenuation is large), which should be about 110,000 lux or so. Even direct compares inside a room are off by a factor of 2. It is way way way off but repeatable. I noticed NONE of the views before used actual numbers to evaluate the accuracy of this device! Once we get a full moon in a clear sky, I will try measuring the illuminance again, and it should be 0.25 lux.

Working great

Purchased to understand light levels in greenhouse, house interior lighting and retail showrooms with 20' ceilings. Was delivered very quickly at a fair price. Greenhouse has plastic on top and needed to know if I was getting too much light and needed shading at times. Retail showrooms was changing to LED lighting and needed to know spacing of fixtures so customers could read packaging. Was simple to use!

Equipo preciso y de gran calidad, ampliamente lo recomiendo

Excelente equipo, preciso y práctico, lo recomiendo totalmente

This is a good accurate handheld light meter for both indoor and outdoor use. The fact that it has a light sensor that can swivel around 90 degrees makes it very useful and easy to use.

Goede eigenschappen voor relatief weinig geld.

Schnelle Lieferung und Gutes Produkt