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Description
PAR-355 Light PAR Meter Advanced Quantum Sensor Measure Grow Light Intensity Lux Meter PPFD Tester for Indoor and Outdoor Plant Photosynthetic ActivityPAR meter is a must have tool for all growers it measures Photo Synthetically Active Radiation (PAR) flux in wavelengths ranging from 400 to 700nm. There is a proportional relationship between the band and the number of photons absorbed in the 400 to 700nm band and the rate of photosynthesis in plants, which is important for horticulture studies and monitoring plant physiology. Features: Compact design, easy to use every day Large screen display User
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.1 ★★★★★
Based on 286 reviews
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Product Reviews
★★★★★ 5
Nice AVR
Style: AVR-X1800H
Refurbished and looking like brand new. One small scratch on the side. It went in a cabinet and it's hidden. All paperwork seemed to be there. If I didn't know it looks like factory sealed . I've got an older Denon. Just wanted to move up to 7.2. Audyssey recognize a second sub. But neither did my older on. No problem with that though. Just FYI. After the original setup and minor tweaking it sounds fantastic for me. I haven't had it but a few days and I hope I get many years of enjoyment from this
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Reviewed in the United States on May 29, 2025
★★★★★ 5
Love it.
Style: AVR-X1800H
Love my Denon AV-1800 ....
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Reviewed in the United States on August 9, 2025
★★★★★ 5
Best value
Style: AVR-X1800H
Great receiver ready to start awesome soung
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Reviewed in the United States on May 11, 2025
★★★★★ 5
Very good audio receiver for my tower speakers and record player set up
Style: Stereo Receiver, Configuration: Receiver
I have had my 1980s Roger sound lab CG 82 Tower speakers connected to a 1999 Technics audio receiver. I use this set up for Radio and my record player.
After many good years, the low end on my audio receiver gave out. I have had it serviced before, but I have owned it for five years and it is a 27-year-old piece of gear that has seen better days. ChatGPT led me to this receiver.
It took me less than five minutes to connect my speakers. What I love about this receiver is that it’s so simple to use. The radio signal is very good right out the box without an additional antenna. I was resistant to buying a Bluetooth receiver, but it connected to my iPad and my iPhone in seconds. Now I can play backing tracks through my Roger sound lab speaker speakers while I jam out on guitar.
No issues with sound quality or anything like that. Runs cool and quiet. If you are a total audio file, you could buy something more expensive. I am a musician and I listen to vinyl. Mostly jazz and classical, and this is fine for my needs. For most people running a record player, looking to modernize with a Bluetooth enabled receiver, this will suit your needs.
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Reviewed in the United States on April 15, 2026
★★★★★ 5
LOVE IT - Great Performance and Great Price
Style: Stereo Receiver, Configuration: Receiver, Style: Stereo Receiver, Configuration: Receiver
Speaking as a self-described "audiophile" (but a true audiophile with deep pockets would likely laugh), this was one of the best gifts I've given to myself in recent years (as I have a fairly large music library of nearly 600 albums of 1/3 vinyl, 2/3 CDs and some cassettes).
Bought mine back in March--used to be $200, but when I saw it for $150 any hesitation went out the window and I grabbed it. I have been in love with it ever since. Fabulous sound and power (do you really need more than 100 watts per channel?), great remote control (not used to that, believe it or not), and it lives up to Sony quality. Powers my vintage components perfectly:
> MCS Series 6202 Belt-Driven Turntable (had it since early 80s)
> Nacamichi BX-300 Cassette Deck
> Sony DVP-NS725P Disc Player (DVD but used mainly for CDs - audio-only connection)
> LG TV connected via optical-to-analog adapter
> KEF Reference Series 103/3 Stereo Speakers
Interesting observation about the way the ports are labeled on the back: what would traditionally be identified as a tape deck port (with IN/OUT) is just "Input 4," and while it's connected to my tape deck for playback, the REC-OUT is connected to a USB audio adapter to digitally record anything (mostly vinyl of course) to my laptop for mastering and iPod/digital library access.
The Bluetooth connectivity is awesome as well with powerful range - great for playing music from mobile devices (phone and iPod Classic with BT adapter). The front line-in 3.5 port, identified as a "Portable" is also a great feature.
At first, I was surprised that there was no input for optical, however since digital-to analog adapters are inexpensive and readily available, I think it's best to leave it that way. Would rather have the option, rather than an optical-only port that would otherwise go unused unless one had a component that required it.
HOWEVER, if I were to make any improvements, it would be to add a USB Out port (preferably on the front), for digital recording on a PC. However again, since adapters are inexpensive and accessible, and for the price I paid for this device, I ain't gonna complain. Front level analog balance, bass and treble controls would also be nice, but you have access to all that through the menu.
If you feel due for a simple, powerful and awesome stereo receiver/amplifier upgrade without breaking your monthly budget, this is a winner.
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Reviewed in the United States on December 9, 2023
