Chlorophyll Meter DCH-52P
Introduction
Non-destructive measurement of plant chlorophyll
The DCH-52P enables quick, easy measurement of the chlorophyll content of plant leaves without damaging the leaf. Chlorophyll content is one indicator of plant health, and can be used to optimize the timing and quantity of applying additional fertilizer to provide larger crop yields of higher quality with lower environmental load.
Features
Quick, easy measurement of chlorophyll levels in plant leaves without damaging the leaf
Measurements are taken by just closing the measuring head on the leaf. Since the leaf is not cut off or damaged in any other way, the same leaf can be measured as the plant grows.
Trend graph display
Up to 30 measurements can be stored in memory and displayed on a trend graph, so that changes in measurements over time can be seen and abnormal values can be noticed at a glance.
Water-resistant
The DCH-52P is water-resistant (IPX-4) so it can be used outdoors even in the rain.
* It is not immersible, and should not be washed with water.
Compact and lightweight for portability
The DCH-52P is small enough to fit in a pocket and weighs only 200g, so it can be taken anywhere.
Low power consumption
The DCH-52P uses LED light sources, resulting in extremely low power consumption, with approximately 20,000 measurements from one set of fresh alkaline-manganese batteries.
Principal Applications
Monitoring of growth and health of plants
The DCH-52P can be used to monitor the growth and health status of a wide variety of agricultural products, including wheat, rice, corn, cotton, etc.
Nitrogen fertilization optimization
The DCH-52P can be used for determining when and how much nitrogen fertilizer should be provided to plants. Optimizing fertilization in this way leads to not only greater yields of higher quality, but also results in less over-fertilization, reducing environmental contamination due to the leaching of excess fertilizer into the soil and underground water.
Specification :
Measurement subject
Crop leaves
Measurement method
Optical density difference at 2 wavelengths
Measurement area
2 mm × 3 mm
Subject thickness
1.2 mm maximum
Subject insertion depth
12 mm (with stopper having position adjustable from 0 to 6 mm)
Light source
2 LED elements
Receptor
1 SPD (silicon photodiode)
Display
LCD panel showing 4-digit measurement value (values shown to first decimal place) and 2-digit number of measurements; Trend graph of values in memory can also be shown.
Display range
-9.9 to 199.9 DCH-52P units
Memory function
Memory capacity for up to 30 values; Calculation/display of average of data in memory also possible
Power source
2 AA-size alkaline batteries
Battery life
More than 20,000 measurements.
Minimum interval between measurements
Approx. 2 seconds
Accuracy
Within ±1.0 DCH-52P units (for DCH-52P units value between 0.0 and 50.0 under normal temperature/humidity) “*” added to display when measurement exceeds 50.0 DCH-52P units
Repeatability
Within ±0.3 DCH-52P units
Reproducibility
Within ±0.5 DCH-52P units
Temperature drift
Within ±0.04 DCH-52P unit /°C
Operating temperature/humidity range
0 to 50°C; Relative humidity of 85% or less (at 35°C) with no condensation
Storage temperature/humidity range
-20 to 55°C; Relative humidity of 85% or less (at 35°C) with no condensation
Size; Weight
78（W）×164（H）×49（D）mm、200g (excluding batteries)
Other
Warning buzzer; User compensation factor
Standard accessories
Depth stop; Strap; 2 AA-size alkaline batteries; Soft case; Reading checker
Non-Destructive Plant Health Assessment with the Chlorophyll Meter DCH-52P
Optimize crop management, nutrient planning, and research with the Chlorophyll Meter DCH-52P—a portable, non-invasive instrument that instantly measures relative chlorophyll content in plant leaves to assess nitrogen status, photosynthetic potential, and overall plant health. Designed for agronomists, researchers, horticulturists, and precision farmers, the DCH-52P delivers fast, repeatable readings without damaging crops—enabling real-time, data-driven decisions in the field or greenhouse.
Engineered for Speed, Simplicity, and Field Reliability
The DCH-52P Chlorophyll Meter uses dual-wavelength optical absorbance (typically 650 nm and 940 nm) to calculate a SPAD (Soil-Plant Analysis Development) value—a proven index correlated with leaf chlorophyll and nitrogen concentration. Its spring-loaded measuring head ensures consistent pressure and positioning, while the large digital display shows results in seconds. The unit is lightweight, battery-powered, and built for daily use in demanding outdoor environments.
- Non-Destructive SPAD Measurement – Assess chlorophyll without harming leaves; ideal for longitudinal studies.
- High Repeatability: ±0.3 SPAD – Ensures reliable comparison across plants, plots, and growth stages.
- Wide Measurement Range: 0.0–99.9 SPAD – Suitable for grasses, cereals, vegetables, trees, and ornamentals.
- Automatic Averaging (Up to 30 Readings) – Store and calculate mean values for greater accuracy.
- Compact & Rugged Design – Fits in a pocket; resistant to dust, moisture, and field wear.
- Long Battery Life (5,000+ Measurements) – Uses standard AAA batteries; auto-off conserves power.
Trusted for Precision Agriculture and Plant Science
Chlorophyll content is a key indicator of nitrogen sufficiency—critical for maximizing yield while minimizing fertilizer overuse. The DCH-52P enables:
Variable-rate nitrogen application based on real-time crop needs
Early detection of nutrient deficiencies before visual symptoms appear
Objective data for research trials, breeding programs, and irrigation studies
Compliance with sustainable farming practices (e.g., 4R Nutrient Stewardship)
Whether you’re managing a cornfield, conducting soybean trials, or maintaining a turfgrass facility, the Chlorophyll Meter DCH-52P turns leaf greenness into actionable agronomic insight.
Measure photosynthesis potential. Optimize inputs. Maximize yield.
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