Treegers Quantum PAR Meter | PPFD Meter | 0–4000 μmol/m²/s | DLI | Grow Room Light Meter

Treegers Quantum PAR Meter — Precision PPFD & DLI Measurement for Serious Growers

Stop guessing. Start measuring. The Treegers Quantum PAR Meter gives you accurate, real-time PPFD readings from 0 to 4000 μmol/m²/s across the full photosynthetic range (400–700nm) — so you know exactly how much usable light your plants are actually receiving at canopy level. Whether you’re dialling in a new fixture, mapping your grow room, or optimising your DLI targets, this is the tool that removes the guesswork.

Why Growers Trust the Treegers PAR Meter

• ✅ PPFD measurement 0–4000 μmol/m²/s — covers the full range from seedling to high-intensity flower stages
• ✅ DLI (Daily Light Integral) calculation — track cumulative light dose over time for precise crop scheduling
• ✅ Max / Min / AVG display — map uniformity across your canopy in a single session
• ✅ Stores up to 99 readings — log your entire room map without pen and paper
• ✅ Remote sensor with 1.5m coiled cord + 3.5m straight cord — reach every point of the canopy without moving the display unit
• ✅ Repeatability ±1 μmol/m²/s — professional-grade accuracy you can rely on reading after reading
• ✅ 2-year warranty — backed by Growers Depot AU

What You Can Do With It

The Treegers Quantum PAR Meter is the essential companion to any LED grow light setup. Use it to:

• Verify your fixture’s actual PPFD output at canopy level — confirm your GL420W, GL650W+, or GL1000W+ is delivering its rated performance
• Map light uniformity across your grow space using Max/Min/AVG to identify any dim zones
• Set and hit DLI targets for each growth stage — veg, transition, and flower — with confidence
• Optimise hanging height and dimmer settings based on real data, not manufacturer estimates
• Log 99 data points across a full room map for record-keeping and future reference

Built for Real Grow Room Conditions

The remote sensor design keeps the display unit safely out of the canopy while the sensor head sits exactly where your plants do. The 1.5m coiled cord is ideal for quick spot checks; the 3.5m straight cord handles larger rooms and multi-tier setups. Runs on 2 × AAA batteries (included) — no charging, no cables, no interruptions.

Full Specifications

• Measurement Range: 0–4000 μmol/m²/s
• Detection Range: 400–700nm (PAR)
• PPFD Repeatability: ±1 μmol/m²/s
• Display Resolution: 0.1 μmol/m²/s (0–999); 1 μmol/m²/s (1000–3999)
• Cut-On Wavelength: 400 ± 10nm
• Cut-Off Wavelength: 700 ± 10nm
• Memory: Stores up to 99 readings
• Display Modes: Max / Min / AVG / DLI
• Remote Sensor Cords: 1.5m coiled + 3.5m straight
• Power: 2 × AAA batteries (included)
• Operating Temperature: 0°C to 50°C (32°F to 122°F)
• Storage Temperature: -20°C to 60°C (-4°F to 140°F)
• Operating & Storage Humidity: 0–95% RH, non-condensing
• Main Unit Dimensions: 115 × 60 × 24mm
• Sensor Unit Dimensions: 80 × 45.6 × 26mm
• Weight: 115g (without batteries and cable)
• Warranty: 2 Years

What’s In The Box

• 1 × Treegers Quantum PAR Meter (main display unit)
• 1 × Remote sensor head
• 1 × 1.5m coiled sensor cord
• 1 × 3.5m straight sensor cord
• 2 × AAA batteries

Pair with any Treegers GL-series LED fixture for a complete, data-driven grow setup. Questions? Contact Growers Depot AU — our specialists are here to help.