Introducing the Treegers Quantum PAR Meter: A cutting-edge tool for precise horticultural lighting measurements. The Treeger's Quantum PAR Meter helps gardeners maximize their yields with precision lighting. Key Features: Measures Photosynthetic Photon Flux Density (PPFD) in the 400 to 700 nm range, crucial for successful crop management. Stores up to 99 readings. Includes DLI (Daily Light Integral) calculation. Comes with a remote sensor and both 1.5m coiled and 3.5m straight cords. Measurement range: 0-4000 μmol/m2/sec. Power: Requires 2 AAA batteries. Operating temperature: 32°F to 122°F (0°C to 50°C). Storage temperature: -4°F to 140°F (-20°C to 60°C). Suitable for use in 0-95% RH environments, non-condensing. PPFD measurement repeatability of +/-1 μmol/m2/sec. Display resolution: 0.1 μmol/m2/sec (0-999); 1 μmol/m2/sec (1000-3999). Wavelength detection range: 400 +/-10nm to 700 +/-10nm. Warranty: 2 years. Ideal for optimizing your gardening results with accurate lighting measurements