Digital Chlorophyll Meter Chlorophyll Content Measurement with Range 0-99.9SPAD
$ 198.0
Description
Digital Chlorophyll Meter Chlorophyll Content Measurement with Range 0-99.9SPAD Introduction: 1. Chlorophyll plays a crucial role in the photosynthesis of plants. Its content is an important indicator of plant nutrition stress, photosynthetic capacity, and growth conditions. 2. Chlorophyll content measurement can be used to monitor the growth and development conditions of plants, thereby making scientific guidance of cultivation, fertilization and management, ensuring the good growth vigor. 3. The chlorophyll meter is able to measure the relative content of chlorophyll in plant leaves (unit SPAD) or “greenness”, thereby learning plants’ actual demands on nitryl and helping the user identify the shortage of nitryl in soil. Specifications: 1 ． Measurement range: 0.0-99.9SPAD 2 ． Measurement area: 2mm*2mm 3 ． Measurement precision: within ±1.0 SPAD unit (SPAD is between 0-50) 4 ． Repeatability: within ±0.3 SPAD unit (SPAD is between 0-50) 5 ． Measurement interval: <3s 6 ． Date storage: SD card 7 ． Data storage capacity: 2GB 8 ． Power: 4.2V rechargeable lithium battery 9 ． Battery capacity: 800mah 10. Weight: 250g 11. External dimensions: 140 x 85 x 45 mm (long x wide x high) 12. Working environment: 0℃-50℃ ； 85% relative humidity Working Principle: 1. The working principle of chlorophyll analyzer (1) Two LED light sources emit two kinds of light, one is red light (650nm) and the other is infrared light (940nm). (2) The amplifier is amplified and converted into a digital signal by an analog/digital converter, and the digital signal is processed by the microprocessor to calculate the SPAD value and display it on the LCD screen. 2. Calibration and calculation of the measured value of the chlorophyll analyzer (1) Calibration and calculation of the measured value of the chlorophyll meter Two LED emit light sequentially, the received light is converted into an electrical signal, and the ratio of the light intensity is used for calculation. (2) After the indenter clamps the sample, the two LED emit light again, the light transmitted through the blade hits the receiver, is converted into an electrical signal, and the intensity ratio of the transmitted light is calculated. (3) The values in steps 1 and 2 are used to calculate the SPAD measurement value, which means the current relative chlorophyll content of the clamped sample leaves.
It is one of the best buying experience that I had! The seller is very kind and responsive to any questions. The shipment is very fast and I got it in 4 days only! The items arrived safely without any problem. I tested the ST meter and it works perfectly. It is the second time that I purchased items from this seller, who is very reliable and trustable. I strongly recommend this seller .
Item delivered EXACTLY as described! Super, lightning FAST shipping! GREAT communication! EXCELLENT seller! I HIGHLY recommend this #1, A+++++ seller! FIVE STARS ALL THE WAY ! ! ! ! ! * * * * * Thank You ! ! !
Item is as described, sent quickly and arrived safely. Would shop with again. Great communication.
Related products
Remote Key Frequency Tester Tool Digital Key Fob Infrared Signal Remote Detector
$ 18.48Remote Key Frequency Tester Infrared&Radio Key Fob Infrared Signal Remote Tester
$ 18.48Test Light Automotive,Circuit Tester 6V-12V-24V,ABS Handle Material,Long Steel P
$ 7.01LCR-T7 Transistor Meter Multi Function Electronic Component TFT Decoder Tester.
$ 9.09