PAR Meter Illuminance Meter PPFD Quantum Sensor Full-Spectrum Record Function Indoor Outdoor Plant Light Meter _x000D_ _x000D_ _x000D_ 1. Compact design, easy to use every day _x000D_ 2. User-friendly, large screen display and easy to operate _x000D_ 3. Record up to 100 measured values _x000D_ 4. For real-time display, it shows the last four recorded data _x000D_ 5. MAX / MIN / AVG Data _x000D_ _x000D_ Importance of Photo Synthetically Active Radiation (PAR) Meter: _x000D_ Photosynthetically Active Radiation (PAR) refers to the spectral range of solar radiation that is crucial for photosynthesis in plants. This light energy is absorbed by pigments such as chlorophyll, initiating the process of converting carbon dioxide and water into glucose and oxygen. _x000D_ PAR meters measure the intensity of light within this range, providing valuable information for optimizing plant growth, determining optimal light levels for indoor cultivation, and assessing the effectiveness of artificial lighting systems. _x000D_ Hold function. _x000D_ Auto turn off function after 3min of no usage. _x000D_ Simple calibration function. _x000D_ With tripod socket. _x000D_ Low battery indicator. _x000D_ SPECIFICATIONS: _x000D_ PPFD (Photosynthetic Photon Flux Density) Measurement: _x000D_ 1. Range:0-5000 mol/m2;/sec _x000D_ 2. Repeatability:1 mol/m2;/sec _x000D_ 3. Display Resolution:0.01 mol/m2;/sec (0-99.99); 0.1 mol/m2;/sec (100-999); 1 mol/m2;/sec (1000-5000) _x000D_ 4. Measuring rate:1 measurement per second _x000D_ 5. Cut-On Wavelength:40010nm _x000D_ 6. Cut-off Wavelength:70010nm _x000D_ Power Supply:2 x AAA battery(Not included batteries) _x000D_ Please note:There are slight color differences or variations in kind. Does not affect the use, please do not mind, thank you! _x000D_ Colour:As Shown _x000D_ Material:Plastic _x000D_ _x000D_ Package Contents: _x000D_ 1 * illuminance meter _x000D_ 1 * English instruction manual _x000D_ _x000D_ Only the above package content, other products are not included. _x000D_ Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_