Portable plant leaf area meter

Main Unit Introduction:

The YMJ series live leaf area meter is a newly developed product. It is a portable instrument that is easy to use and suitable for fieldwork. It can accurately, quickly, and non-destructively measure the leaf area and related parameters of leaves, and can also measure the area of harvested plant leaves and other sheet-like objects. It is widely used in agriculture, meteorology, forestry, and other fields.

The instrument can directly measure leaf length, width, and area, and integrates GPS positioning and a 4G wireless transmission system. It also features a Type-C interface, allowing measurement data and location information to be simultaneously imported into computers and cloud data platforms, facilitating further data processing by researchers.

Differences between Live Leaf Area Meters/Leaf Area Analyzer Models:

Model | Functional Differences

YMJ-A | No computer interface; data can be stored and viewed on the main unit.

YMJ-B | Computer interface; data can be stored on the main unit and transferred to a computer; software can print and convert to Excel format.

YMJ-G | Computer interface; adds 4G wireless transmission and GPS positioning module; simultaneous measurement and synchronization of time, address, etc.

Features of Live Leaf Area Meters/Leaf Area Analyzers:

1) Integrated main unit and probe design for easier operation.

2) Microcomputer technology with a large LCD display.

3) High-performance, high-capacity battery; no external power supply required; low-voltage display; continuous measurement suitable for field applications.

4) Can measure a large leaf area (2000*155mm²) in one measurement.

5) Can store 5000 sets of data.

6) Can measure multiple leaf parameters: leaf area, leaf length, and leaf width.

7) Built-in calibration module, allowing users to perform calibration according to different usage environments.

8) Communication interface: Type-C interface, enabling data import to a computer. (This function is only available for models B and G.)

9) GPS positioning: Integrated high-speed GPS positioning module; uploaded data includes time and latitude/longitude information for more efficient data processing. (This function is only available for model G.)

10) 4G wireless transmission: Measurement data can be uploaded to the cloud platform in real time. Users can view measurement time, blade area, and other data; perform line graph analysis on different parameters; export data in Excel format; print data online; display data according to selected time periods; analyze data in tables and line graphs; and download data online. (This function is only available on Model G)

Technical parameters of the live leaf area meter/leaf area meter:

(1) Area unit: cm²

(2) Resolution: 0.01 cm²

(3) Measurement accuracy: ±2%

(4) Width range: 0～155 mm

(5) Length range: 0～2000 mm

(6) Data recording: 0～5000 sets

(7) Power supply: Lithium battery (built-in) 5000mA+ (external, replaceable) 1400mA