Skip to product information
1 of 7


BTMETER BT-881E Digital Illuminance/Light Meter for Plants Aquarium Light Tester

BTMETER BT-881E Digital Illuminance/Light Meter for Plants Aquarium Light Tester

Regular price $33.29 USD
Regular price $37.99 USD Sale price $33.29 USD
Sale Sold out
Shipping calculated at checkout.

BTMETER BT-881E Auto-ranging Light Meter

Keep track of distance and luminosity intensity from light source

Thanks to the Silicon Photo Diode with Filter, the BT-881E Lux meter can take accurate lumens reading for LED lights, grow lights, sun light.

Forget speculating, know exactly the changing of luminosity power from the distance indoors, outdoors, in the greenhouse, for plants, Orchids.


☀【HIGH ACCURACY】+/- 4% readings +/- 0.5% f.s (10,000 Lux; 1,000 FC); +/- 5% readings +/- 10 digits (300,000 Lux; 30,000FC)

☀【0.4 SECOND RESPONSE】2~3 times sampling per second, Instantly to measure out how much lights you’re getting

☀【WIDE MEASURE RANGE】 This light meter can measure luminance at 0.01~300,000 Lumens, (0.01~30,000 Foot Candles), Which is much wider than the others. Resolution 0.01

☀【EASY TO USE】The light sensor can be rotated 270º, so you don’t need to turn around the light meter to measure lights from different angles. Just rotate the sensor, and you can still read the measure at front

☀【MEMORIZE THE LIGHT READINGS】This Lux Meter can help you record 33 sets of readings,Temp Testing, The RELATIVE measuring mode will show you the difference between current / recorded data. Ideal to use at home, garden, aquarium,plants, school, office, state, LED lights, indoor and outdoor

More features:

1. Data Hold

2. Backlit Screen

3. Data Recordable

4. Max/Min Light Test

5. Ambient Temp Test

6. Low Battery Reminder

7. Auto/Manual Range Optional

8. Zeroed Out for Accurate Reading

9. Auto/Manual Power OFF Optional


This is NOT a pro photography light meter, after given the basic lux readings, you’ll need to do some maths to find your shutter speed and aperture.


Shipping Policy

We have the warehouses located in the United States, United Kingdom, Australia. If your delivery address is in the United States, United Kingdom, Australia, and we have the stock there, the local delivery time is 3-12 days.

We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

View full details

Customer Reviews

Based on 27 reviews
Emily 'Diane' Lewis
Illuminance Light Meter

Works as described.

Ronald Philbrook
Most accurate!

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.


Great meter

Todd G.
Good for measuring low light levels.

I bought 2 and one read slightly higher than the other. Over all a very good product for the money.
2 people found this helpful

Went up in price while in my cart

Nice little unit I like how you can turn the sensor I wish it didn't go up 12 bucks before I bought it is what it is