TK499PLUS Professional PAR DLI Light Meter PAR/PPFD & DLI for Plants Measure Photosynthetic Light (400-700nm) for Hydroponics, Greenhouses & Indoor Grow Rooms
Key Features: ✔ Accurate PAR & DLI Measurement – Tracks light intensity (PPFD) and total daily light (DLI) for optimal photosynthesis✔ Long-Term Data Logging – Stores up to 5 years of data and exports via CSV file✔ USB Type-C Connectivity – Easily transfer data to a PC for analysis✔ 30-Day On-Screen Data Display – Quickly check recent light levels without a computer✔ Real-Time Clock & Date Display – Timestamped readings for precise tracking✔ IP65 Waterproof – Durable for use in greenhouses, grow tents, and outdoor gardens✔ Battery Level Indicator – Never run out of power unexpectedly✔ Auto/Manual Power-Off – Conserves battery life when not in use Why Light Monitoring Matters: PAR (400-700nm) is the spectrum plants use for photosynthesis - too little slows growth, too much causes stress. DLI measures total daily light energy - critical for adjusting grow lights or sunlight exposure. Essential for indoor farming, hydroponics, greenhouses, and horticultural research. Who Needs This Meter?🌱 Home Gardeners – Perfect light for houseplants, herbs, and seedlings🌿 Commercial Growers – Maximize crop yields with data-driven lighting🔬 Plant Scientists & Researchers – Precise light measurement for experiments💡 LED Grow Light Users – Verify your setup delivers optimal PAR levels Specifications: PPFD Measurement: Repeatability: ±1μmol/m2/sec Measurement Range: 0~5000 μmol/m2/sec Display Resolution: 0.01 μmol/m2/sec(0-99.99); 0.1 μmol/m2/sec(100-999); 1 μmol/m2/sec(1000-5000) Measuring Rate: 1 measurement per second Cut-On Wavelength: 400±10nm Cut-Off Wavelength: 700±10nm Operating Condition: 32~22°F (0~50°C); 0-95%RH, non-condensing Storage Condition: -4~140°F (-20~60°C); 0-95%RH, non-condensing Power Requirements: 2pcs AAA alkaline battery Dimension: 115 x 60 x 24 mm Weight: 115g / 0.25 pounds (without batteries) 📦 What’s Included? 1 x PAR Meter 1 x Type-C Cable 2 x AAA batteries 1 x Soil rod 1 x Screwdriver English User Guide
