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China, Chinese Spad-502plus Handheld Digital Spad Chlorophyll Meter1 Industrial Products Supplier Manufacturer Details, price list catalog:
China Industrial Products Supplier Manufacturer List Catalog
Analysis InstrumentElement AnalyzerChlorophyll MeterSpad Chlorophyll Meter
Henan Aoda Instrument Equipment Co.,Ltd
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Product Description SPAD-502PLUS Handheld digital SPAD Chlorophyll meterSPAD-502Plus Chlorophyll meter can help users understand the nutritional status of crops by measuring the chlorophyll content in their leaves. The chlorophyll content is related to the growth conditions of crops, so it can be used to determine whether corresponding fertilizers need to be added. Only by optimizing the nutritional conditions can we grow more healthy crops and finally obtain high-quality Dafengshou (Salad of assorted fresh vegetables).FeaturesQuick and easy measurementWhen measuring, simply insert the leaves and close the measuring probe, without cutting off the leaves. This allows for monitoring of specific leaves throughout the growth process of the crop, resulting in more scientific analysis results.Trend chart display The trend of multiple sets of measured data will be displayed in the graph, and those data with significant differences can be easily identified and valued for analysis.Waterproof functionThe SPAD-502Plus has waterproof function (IPX-4), allowing for outdoor measurement work even on rainy days.Do not immerse the instrument in water or clean it directly with water.Lightweight and easy to carryThe SPAD-502Plus has a compact body and weighs only 200g, making it easy to fit into a pocket and take to the field for measurement.Low battery consumptionThe SPAD-502Plus uses LED lighting sources, which greatly reduces battery consumption. A set of 2 AA batteries can perform approximately 20000 measurements.Work principle SPAD-502Plus evaluates the relative content of chlorophyll in the current leaf by measuring the absorption rate of the leaf in two wavelength ranges.The following figure shows the spectral absorption of chlorophyll in two leaf samples. From the graph, it can be seen that chlorophyll reaches its peak absorption in the blue region (400-500nm) and red region (600-700nm), but does not absorb in the near-infrared region.By utilizing the absorption properties of chlorophyll, SPAD-502Plus measures the absorption rate of leaves in the red and near-infrared regions. By analyzing the absorption rates of these two regions, a SPAD value can be calculated, which is a numerical representation of the current parameter corresponding to the chlorophyll content in the leaves.SpecificationModel Chlorophyll meterSPAD-502PlusTest sampleLeaves Test methodOptical density difference at 2 wavelengthsTest area2 ×3 mmSample thicknessMax 1.2 mmSample insert depth12 mm (0-6mm adjustable)Light source2 *LED lightSensor 1 pcs of SPD(Silicon photodiode)Display LCD screen display,4 digits,trend chartMeasuring range-9.9 - 199.9 SPAD Data storage30 groups,can calculate / display average valuePower supply2 * 1.5V batteryBattery life20,000 timesMini test interval2 secondsAccuracy ±1.0 SPAD Repeatability ±0.3 SPAD 0.0 - 50.0°C SPAD same test point±0.5 SPAD Temperature draft±0.04 SPADWork temperature/humidity rangeTemperature : 0 - 50°C,Humidity < 85% RH @ 35°C,no dewpointStorage temp./humidityrange-20 - 55°C,Relative humidity < 85% @ 35°C,no dewpointSize / Weight78 (W) ×164 (L) ×49 (H) mm, 200 gOthers ALARM,User coefficient compensationStandard kitsDeep braking, hand rope, 2 No. 5 batteries, soft pack, inspection certificateDetailed Photos Related productsYMJ-B Plus Leaf area meterYMJ-B portable leaf area meter can instantly measure the area, circumference, length, width, aspect ratio, shape factor of leaves, and can measure detached and non-detached leaves. ADS-4N Plant nutrient meterThe plant nutrition meter can measure leaf temperature, nitrogen content, relative chlorophyll content and leaf humidity, non-destructive plant detection, and will not affect plant growth.3051C Plant photosynthesis meterThe portable photosynthesis meter can measure 12 parameters including plant leaf photosynthetic rate, plant leaf transpiration rate, photosynthetically active radiation, intercellular CO2 concentration, stomatal conductance, water utilization rate, plant leaf wet temperature, plant leaf room temperature and humidity, etc.Factory & WorkshopPackaging & ShippingFAQQ : What products can you offer?A : We are a one-stop laboratory instrument supplier that can provide customers with products and solutions according to their needs.Q : How long is your usual delivery time?A : Our products are usually shipped out 5-7 days after receiving payment.Q : What transportation methods do you support?A : We support express delivery (DHL/FEDEX/UPS/TNT), trucks, trains, planes, and ships.Q : What trade methods can you accept?A : We support EXW, FCA, FOB, CFR, CPT etc
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