The Treegers Quantum PAR Meter is an advanced tool for precision measurement in horticultural lighting. Designed to optimise plant growth, it accurately measures Photosynthetically Photon Flux Density (PPFD) levels within the 400 to 700 nm range, essential for crop control success. A tactical product choice to add to your growing toolbox Specifications - Stores up to 99 readingsMax/Min/AVG value DLI ( Daily Light Integral)Remote Sensor with 1.5m Coiled Cord and 3.5m Straight CordMeasurement Range: 0-4000 μmol/m2/secDetection Range: 400 – 700nmPower Requirements: Comes with 2 x AAA batteriesOperating Temperature 32°F to 122°F (0°C to 50°C)Storage Temperature -4°F to 140°F (-20°C to 60°C)Operating & Storage RH 0-95%, non-condensingPPFD Measurement: Repeatability +/-1 μmol/m2/sec ; Measurement Range 0-3999 μmol/m2/secDisplay Resolution: 0.1 μmol/m2/sec (0-999); 1 μmol/m2/sec (1000-3999)Cut-On Wavelength: 400+/-10nmCut-Off Wavelength: 700+/-10nmDimensions: Main Unit: 115 x 60 x 24mm; Sensor Unit: 80 x 45.6 x 26mmWeight: 115g (without batteries and cable)Warranty: 2 YearsOptional Treegers Extension Wand Available