Product parameters: Name: Chlorophyll meter Measuring range: 0.0-100 SPAD Measuring area: 2mm*3mm Measurement accuracy: within ±1.0 SPAD unit (at room temperature, SPAD value is between 0-50) Repeatability: Within ±0.3 SPAD units (SPAD value range is 0-50) Measurement interval: less than 0.8 seconds Data storage medium: SD card storage Data storage capacity: 16GB Power supply: 4.2V rechargeable battery Battery capacity: 3000mah Weight: 230g Dimensions: 140×85×45mm (length×width×height) Working and storage environment: -10?-50?; 85% relative humidity packing list : Chlorophyll meter*1 Host*1 Charger*1 USB data cable*1 Memory card*1 Card reader*1 Portable aluminum box*1 Instruction manual*1

Scientific measurement: The chlorophyll meter determines the relative content of chlorophyll in the current leaves by measuring the transmittance of the leaves in two wavelength ranges. 16GB storage capacity: The multifunctional chlorophyll meter has a storage capacity of 16GB, which can store multiple measurement data for easy data comparison. You can view past data in historical query data, and the data will not be lost even if the power is unexpectedly cut off. LCD display: The chlorophyll meter has a backlit LCD display for clear and intuitive readings. It is small and easy to carry. High precision: Chlorophyll: 0.0-99.9 SPAD. Measurement accuracy: Chlorophyll: within 1 SPAD unit. Fast measurement speed of 0.8 seconds: The plant chlorophyll measuring instrument is non-destructive to plants, has accurate measurement, small error and fast measurement speed. Measurement data can be obtained within 0.8 seconds.