Light Meters 881D Digital Illuminance Meter Ambient Temperature Measurer with Range up to 400,000 Lux Luxmeter, Rotatable Head for 270 Degrees, Display 3999, Data Hold, Back Light, Data storag
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It detected a wide range of burples, as well as yellples.
Yes, I used mine for that on a few refits as well as a new project.
To adjust the multiplier, press the Range button.
It depends on the type of light source, as far as I understand it. It will not read your light correctly if it is considered blurple. It should work fine if your lights are white to yellowish.
Selected User Reviews For Light Meters 881D Digital Illuminance Meter Ambient Temperature Measurer with Range up to 400,000 Lux Luxmeter, Rotatable Head for 270 Degrees, Display 3999, Data Hold, Back Light, Data storag
Simply multiply your lux reading by the corresponding number for each of the light types listed: br>br>LEDs with a color temperature of 3000K - multiplied by zero White LEDs with a color temperature of 023br>3500k - multiplied by zero White LEDs with a color temperature of 022br>4000k - multiplied by zero White LEDs with a color temperature of 024br>5000k - multiplied by zero 02br>Metal Halide is a type of metal that can be used to make a variety of products. multiplied by zero 023br>Sodium Sodium Sodium Sodium Sodium Sodium Sodium Sodium Sodium Sodium Sodium Sodium Sodium multiplied by zero 026br>br>Sorry if your spectrum isn't covered; also, this isn't compatible with blurple lights. br>br>Also, this only works up to a maximum of 900- 1000 par.
The meter was just bought. br>I turned on the meter with the sensor covered and got a reading of 0. 00lux. I experimented with working in low light and then in direct sunlight. Everything appears to be in working order. However, it was discovered that when the meter was exposed to sunlight and then returned to low light, the meter had a 350lux bias. The meter still reads 379lux when the sensor is covered again. br>br>I tried a few more things. When the light is increased from very dim to about 400lux on the meter, the reading suddenly jumps up by about 350. When the light is dimmed and the sensor is covered, the meter still reads 379. 4 lux. To reset the zero, turn it off and on again, or press REL with the cap on. When the light level exceeds 400lux, it appears that the photo detector creates a bias. I didn't try to see if the bias would go away with time. br>br>The instruction sheet mentioned a 9V battery, but the unit uses a 2x1. AAA battery, 5 volts It appears to be a cut-and-paste job. br>br>Conclusion: br>br> There are a lot of options, but Auto Zero isn't working properly. Returned.
To make it work, remove the batteries and replace them. I liked the variety, and I was able to quickly obtain a LUX reading for lighting in our church building, where one of the staff members was unable to read due to a lack of light. We swapped out 50W halogen bulbs for super bright LEDs. The device was not functioning properly. We knew the light wasn't that different because it gave us wacky numbers like 50 times off. I removed the batteries, waited a few moments, and then reinstalled them, and everything was fine. I assumed it was a one-time occurrence, but it happened again a few weeks later in a different location. The plastic battery cover is held together with a screw, but the plastic is shredding, so I'll have to unscrew and screw a few more times before using tape to keep it together. Otherwise, the display is large and clear, the backlight feature is cool, the numerous ranges and capabilities are fantastic, and a professional light meter would cost 10 times as much, so I can live with the quirks.
I'm not sure what else to say. It works, it's reasonably priced, and it has a few more features than the average product in its class. It has assisted me in properly positioning my lights; I was concerned that I was providing too much light to my plants, and this has assisted me in determining the proper placement. Since I was able to increase the LUX without going too high, I've noticed a significant improvement in growth.
The switch actuation is excellent, and the LCD resolution is good. In general, the quality is satisfactory. Although the swivel light receiver is useful, it is unlikely that many people will use it. If they designed out the swivel light cup, they could save a few sheckles. br>br>The meter has a good response, but I'm not sure how accurate it is until it's calibrated. For my purposes, I believe it is accurate enough. I do know that it has eliminated the guesswork involved in adjusting a light source to "object" distance.
The swiveling head allows you to point at a light source while still reading the LCD screen. For low-light situations, it has a backlight. Use with caution. Although the instructions are not great and contain some errors, the controls are simple to use. I can't speak for accuracy because I don't have access to a calibrated reference source, but the readings are consistent.
It counts the number of lux/footcandles and the temperature outside. With fast response times, it's a great fit. It comes with a nice soft case, and I calibrated it with a Minolta light meter, and the readings are spot on. Would highly recommend, and at this price point, you can't go wrong.
I noticed that it measured Lux and assumed that it would also provide me with Lumens. I'm not a light meter expert, so you could probably convert with math, but I was looking for something more straightforward. I'm debating whether or not to return it because it isn't user-friendly enough for me.
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