Chlorophyll meters with sensors

Introduction

Chlorophyll meters with sensors are instruments used to measure the chlorophyll content of the plant leaves, with the integrated sensors that measure the light absorbance and the other parameters, and they are used in the agriculture, the horticulture, the plant science, and the research for the assessment of the plant health and the nitrogen status. The chlorophyll meter with the sensors measures the absorbance of the light by the leaf at the specific wavelengths, and it calculates the relative chlorophyll content, and it may include the additional sensors for the measurement of the leaf temperature, the ambient light, and the other parameters, and it provides a rapid and a non-destructive measurement, with features such as the data logging and the connectivity; the chlorophyll meter is used for the assessment of the nitrogen status of the crops, for the guidance of the nitrogen fertilization, for the assessment of the plant health and the stress, for the monitoring of the crop growth, for the research on the plant physiology, and for many other applications, and it is battery-operated and designed for the field use, with a compact and a rugged construction; the chlorophyll meters with the sensors provide the chlorophyll data along with the environmental data, which improve the interpretation of the measurements. Chlorophyll meters with sensors are used by the agronomists and the farmers for the crop management, by the horticulturists, by the plant scientists, by the researchers, and for many other applications. With their integrated sensors, chlorophyll meters with sensors are essential for the plant assessment.

Chlorophyll Meter With Sensor LCSM-T2010

Chlorophyll Meter with Sensor utilizes the fluorescence method to measure concentrations from 0 to 500 μg/L or 0 to 100 with a high-resolution of 0.01 μg/L. Made of durable titanium, i...

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Standards

Complies with the above standards, but is not limited to them.

Features

1. Chlorophyll meter with optical sensor for non-destructive leaf chlorophyll measurement.

2. Handheld meter measuring relative chlorophyll content via light absorption at two wavelengths.

3. Suitable for agriculture, plant science, crop management, ecology and environmental research.

4. Includes meter, sensor head, calibration plate, batteries, carrying case and manual.

5. Provides instant SPAD or chlorophyll index readings for nitrogen status and plant health assessment.

FAQ

Q1: What testing scenarios is this meter mainly applied to?

A: The chlorophyll meter non-destructively measures relative leaf chlorophyll content by shining red (650 nm) and infrared (940 nm) light through the leaf; chlorophyll absorbs red light, and the ratio gives a chlorophyll index (SPAD value or similar). Used in agriculture (crop nitrogen status assessment, fertilizer optimization, yield prediction - corn, wheat, rice, cotton), plant science (stress detection (drought, nutrient deficiency, disease), photosynthesis research, mutant screening), ecology (forest health, wetland vegetation, pollution monitoring), horticulture (greenhouse crop management, ornamental plant health), and environmental research (phytoremediation, climate change effects on vegetation). Non-destructive: same leaf can be measured repeatedly over time. Reading range typically 0-99.9 SPAD units.

Q2: What standards does the meter comply with?

A: Complies with ISO 17025 (if used in accredited labs), ASTM standards for plant analysis, and GB/T standards for agricultural instruments. Hardware meets wavelength accuracy, measurement repeatability (+/-0.3 SPAD), and leaf thickness compensation. For research, follow published protocols (sample position on leaf, leaf age, time of day - chlorophyll varies). Calibration with standard plate or chlorophyll extraction (Arnon method, spectrophotometric) for correlation to absolute chlorophyll content (mg/g). SPAD values are relative, not absolute - convert to actual chlorophyll via species-specific calibration curves.

Q3: What is the warranty period for the whole meter and key components?

A: Whole meter covered 12-24 months. Sensor window (wear - can scratch; clean carefully), batteries (alkaline or rechargeable, replace), and calibration plate (wear - handle carefully) are consumables/accessories. Damage from dropping, sensor window scratches, water immersion (unless IP rated), using on wet/dirty leaves (contaminates window), or unauthorized repair is excluded. Extended warranty available. Sensor/electronics 5-10 years with proper care. Low-maintenance field instrument.

Q4: Is this device difficult to operate? Is professional training required?

A: Very simple: turn on, calibrate/check with standard plate, clamp sensor head on leaf (avoid veins, measure mid-lamina between veins), read value instantly. No professional training required. Key points: measure same leaf position (mid-lamina, avoid veins and tip), consistent time of day (chlorophyll/leaf water status varies), avoid shaded/senescent leaves unless intended, clean sensor window after use. Multiple readings per leaf (3-5) and multiple leaves per plant for statistics. Safety: low-risk field instrument, avoid looking directly at measurement light (low intensity). Do not measure wet leaves (water affects reading - wipe dry).

Q5: What is the typical lead-time for order delivery?

A: Standard models require 7-30 working days. In-stock units can ship within 3-7 working days. Custom configurations or large built-to-order systems may require additional time, and we confirm the exact schedule before order confirmation.

Q6: Is regular calibration required? What is the recommended calibration cycle?

A: Calibrate/verify with standard calibration plate before each use or daily (check zero and standard). Full factory calibration every 6-12 months (or if readings drift). For research, periodically validate against destructive chlorophyll extraction (Arnon method: extract in 80% acetone, measure absorbance at 645/663 nm, calculate mg/g) to establish species-specific conversion equation. Routine: clean sensor window, check batteries. If meter dropped or readings inconsistent, recalibrate. For ISO 17025, maintain calibration records.

Q7: Are supporting consumables universal?

A: Calibration plate specific to meter model (use OEM). Batteries standard (AA/AAA alkaline or Li-ion). Sensor window cleaning supplies (lens paper, water - universal). Long-term cost very low: batteries, occasional calibration. No reagents needed (non-destructive optical method).

Q8: Can I customize parameters or supporting accessories?

A: Customization includes wavelength (standard 650/940 nm; some models offer additional wavelengths for flavonols/anthocyanins (Dualex)), measurement range, data logging (internal memory, USB/Bluetooth to phone/PC), GPS tagging (field mapping), sensor head type (clip-on for leaves, contact for small leaves, probe for algae/canopy), waterproof/IP rating, display (LCD, backlit), and multi-parameter (chlorophyll + flavonols + nitrogen balance index). Accessories: spare calibration plate, carrying case, belt clip, data cable/software, leaf clip, spare batteries, certifications (CE, ISO 9001, IP54/65).

Q9: Does the purchase include on-site installation and commissioning service?

A: Standard delivery includes meter, calibration plate, batteries, case, manual. On-site installation not required (portable, turn on and use). On-site training available at additional cost for research teams on sampling protocols and data interpretation. Always verify with calibration plate before first use.

Q10: What types of samples are compatible with this equipment?

A: Compatible: leaves of most plant species (agricultural crops, trees, ornamentals, grasses) with appropriate thickness (typically 0.1-2 mm; sensor clamps through leaf). Not compatible: very thick or tough leaves (may not clamp fully - use contact probe), very small leaves below sensor aperture (use smaller aperture model), non-leaf tissues (stems, roots, fruit - need different sensor), wet leaves (wipe dry), senescent/necrotic tissue (unless studying senescence), or algae/canopy (use specialized probe or remote sensor). SPAD values are species-specific - compare within same species and conditions. For absolute chlorophyll, validate with extraction method.