--- product_id: 415217512 title: "DLI-500 PAR, Daily Light Integral, and Photoperiod Meter - Full-Spectrum 400-700 nm Light Measurement Tool for Plants & Agriculture" brand: "apogee instruments" price: "€ 1035.74" currency: EUR in_stock: true category: "Apogee Instruments" url: https://www.desertcart.gr/products/415217512-dli-500-par-daily-light-integral-and-photoperiod-meter-full store_origin: GR region: Greece --- # Full-spectrum 400-700 nm PAR sensor Records DLI & photoperiod for 99 days IP65 rugged, weather-resistant design DLI-500 PAR, Daily Light Integral, and Photoperiod Meter - Full-Spectrum 400-700 nm Light Measurement Tool for Plants & Agriculture **Brand:** apogee instruments **Price:** € 1035.74 **Availability:** ✅ In Stock ## Summary > 🌿 Illuminate your grow with precision — don’t let your plants miss a photon! ## Quick Answers - **What is this?** DLI-500 PAR, Daily Light Integral, and Photoperiod Meter - Full-Spectrum 400-700 nm Light Measurement Tool for Plants & Agriculture by apogee instruments - **How much does it cost?** € 1035.74 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/415217512-dli-500-par-daily-light-integral-and-photoperiod-meter-full) ## Best For - apogee instruments enthusiasts ## Why This Product - Trusted apogee instruments brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Long-Term Monitoring:** Stores up to 99 days of continuous data, empowering data-driven cultivation decisions. - • **Research-Grade Precision:** Engineered by Dr. Bruce Bugbee, trusted by top crop physiologists for unmatched accuracy. - • **Comprehensive Light Metrics:** Measures PPFD, DLI (mol·m⁻²·d⁻¹), and photoperiod in 0.2-hour increments to optimize plant growth cycles. - • **Built for Harsh Environments:** IP65-rated durability with versatile mounting options and protective case for any grow setup. - • **Made in the USA with Warranty:** Backed by a 4-year warranty and US-based customer support for peace of mind. ## Overview The DLI-500 PAR meter is a professional-grade, full-spectrum light measurement tool designed for precise monitoring of photosynthetically active radiation (PAR), daily light integral (DLI), and photoperiod. Engineered by renowned crop physiologist Dr. Bruce Bugbee, it offers up to 99 days of data logging, USB-C data export, and rugged IP65-rated durability, making it an essential instrument for optimizing plant health and maximizing yields in any agricultural or horticultural environment. ## Description Apogee Instruments DLI-500 PAR, Daily Light Integral, and Photoperiod Meter - Full-Spectrum 400-700 nm Light Measurement Tool for Plants & Agriculture: desertcart.com: Industrial & Scientific ## 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 mol·m-2·d-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. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09RQ3M7RS | | Batteries | 2 AAA batteries required. (included) | | Best Sellers Rank | #227,243 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #79 in Lab Photometers & Light Meters | | Date First Available | February 1, 2022 | | Item Weight | 6.4 ounces | | Manufacturer | Apogee Instruments | | Package Dimensions | 4.69 x 4.33 x 2.32 inches | ## Images ![DLI-500 PAR, Daily Light Integral, and Photoperiod Meter - Full-Spectrum 400-700 nm Light Measurement Tool for Plants & Agriculture - Image 1](https://m.media-amazon.com/images/I/51JsDxFlp2L.jpg) ## Frequently Bought Together - Apogee Instruments DLI-500 PAR, Daily Light Integral, and Photoperiod Meter - Full-Spectrum 400-700 nm Light Measurement Tool for Plants & Agriculture - AC Infinity UIS Splitter Hub, 4-Port Adapter Dongle, Connector Cable Cord to Share UIS Programming for LED Grow Lights, EC Motor Fans, and Humidifiers - AC Infinity Self-Watering Fabric Pot Base, 4-Pack Auto-Irrigation Water Delivery System with Reservoir Meter, Elevated Plant Saucers for Use in Indoor Grow Tents, Greenhouses, and Outdoor Gardens --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.gr/products/415217512-dli-500-par-daily-light-integral-and-photoperiod-meter-full](https://www.desertcart.gr/products/415217512-dli-500-par-daily-light-integral-and-photoperiod-meter-full) --- *Product available on Desertcart Greece* *Store origin: GR* *Last updated: 2026-10-12*