Apogee Instruments DLI-500 PAR, Daily Light Integral, and Photoperiod Meter - Full-Spectrum 400-700 nm Light Measurement Tool for Plants & Agriculture
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Availability:
Only 6 left in stock, order soon!
Arrives
Wednesday, Jul 16
Style: DLI-500
Features
- DR BRUCE BUGBEE: Apogee DLI PAR meters have been designed and refined by Dr. Bruce Bugbee, a world-famous crop physiologist
- DLI-500 FULL-SPECTRUM METER: Provides research-grade measurements of PAR (PPFD), DLI, and photoperiod from 400-700 nm for all plant grow-lighting. It records spot measurements and daily light integral (DLI) in molm-2d-1 and photoperiod in 0.2-hour increments for up to 99 days. Monitoring and adjusting the DLI (total photosynthetic photons in a 24-hour period) and photoperiod (hours of light) are crucial for optimizing plant health, flowering, and other morphology effects. PPFD, DLI, and photoperiod data can be viewed onscreen or downloaded via USB-C for analysis.
- RUGGED AND VERSATILE: IP65-rated for durability in harsh environments. Can be placed on any surface or mounted with standard camera equipment. Includes protective case, soil stake, AAA batteries, USB-C cable, screwdriver, and QuickStart guide.
- MANUFACTURED IN THE USA: All meters are backed by our four-year warranty and supported by our US-based customer support team.
Package Dimensions : 4.69 x 4.33 x 2.32 inches; 6.38 ounces
Batteries : 2 AAA batteries required. (included)
Date First Available : February 1, 2022
Manufacturer : Apogee Instruments
Best Sellers Rank: #109,189 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #37 in Lab Photometers & Light Meters
#37 in Lab Photometers & Light Meters:
Customer Reviews: 4.2 4.2 out of 5 stars 24 ratings
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Wednesday, Jul 16
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Style: DLI-600
If I had to force a complaint I'd say I wish I didn't have to remove 2 screws to access the USB-C port, but I have no doubt it's concealed where it is for a reason, and it's not much of an inconvenience at all. Otherwise it's all positive marks for the DLI-600. The universal thread is a great idea, I picked up an inexpensive, telescoping tripod/wand to use for quick and long term readings. Compared these readings with a 2 year old MQ-510 and they're nearly identical. Easy to access the files via the included USB-C cable on my laptop. You get what you pay for and I have no doubt this DLI-600 will be taking accurate readings for years to come. No more burning, or under lighting my plants. Keep up the good work, Dr. Bruce.
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Reviewed in the United States on October 21, 2022 by Larry Larry
Style: DLI-600
Very easy to use. It is easy to give a plant too much light. If you use this meter your plants will get just what they need.
Reviewed in the United States on May 20, 2024 by Kindle Customer
Style: DLI-400
Exactly what I needed for my experiment!
Reviewed in the United States on July 11, 2024 by WILLIAM H SACHS
Style: DLI-400
Compré tres de estos instrumentos para iniciar unos experimentos y uno de los fotometros ni siquiera se prendió. Esto atrasa considerablemente el trabajo que debia iniciar. Decepcionada. Intentare devolver el instrumento dañado ya que me encuentro en otro pais. Por el valor del producto no deberian enviar piezas con fallas
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Reviewed in the United States on December 22, 2024 by victoria
Style: DLI-400
This died within a month while out in thunderstorms occasionally. It seemed accurate but to read it you have to open it, which disconnects the batteries and forgets today’s results. It only records CSV with data for every half hour for ten days (and daily for 100 days I think), even though it samples more frequently. It didn’t show up when connected to my iPad or modern Mac, but it did intermittently connect to my very old Mac (from 2006). I loved it despite these problems but for the price I need it to survive the weather.
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Reviewed in the United States on August 7, 2024 by Hoigul
Style: DLI-600
The battery compartment screw was completely stripped and the screw falls out. It arrived like that. Incredibly poor design for an expensive instrument.
Reviewed in the United States on May 26, 2023 by John Falmore