Plant Stem Flow Tester Product introduction:
The plant stem flow measuring meter uses the heat dissipation probe method to measure the instantaneous stem flow density of tree trunks, which can continuously observe the sap flow of trees for a long time. This is beneficial for studying the water exchange law between trees and the atmosphere, and using it as an observation method to monitor the impact of forest ecosystems on environmental changes for a long time. It has important theoretical guidance and practical value for afforestation, forest management, and forestry management.

Plant Stem Flow Tester Principle:
The plant stem flow measuring instrument adopts a new method for measuring Sap Flow invented by French scholar Granier after the 1980s, namely the heat dissipation probe method (constant heat flux sensor method). The data collection of this method has the characteristics of accuracy and stability, and can continuously read data without interruption, so the data is systematic. The measurement system consists of a pair of 30mm long heat dissipation probes. During installation, the probes are inserted into the edge wood of the tree at a distance of 10cm-15cm. The upper probe is wrapped with a resistance wire for direct current heating, while the lower probe is not heated and maintains the same temperature as the surrounding edge wood tissue. The temperature difference between the two probes reflects the liquid flow density of the tree.

Plant Stem Flow Tester Product Features
1. Dual probes, equipped with corresponding drilling tools, easy to insert and remove, can be reused repeatedly
2. Using the heat dissipation method, it can be heated at a constant temperature
3. Can be monitored continuously for a long time
4. Stainless steel probe, coated with Teflon, durable and long-lasting
5. Using high-capacity SD card storage
Technical data:
Measurement indicator: instantaneous liquid flow density
Measurement channel: single channel
Storage capacity: 2GB
Sampling interval: 1-99 minutes adjustable
Display: 320×160 LCD screen
Power supply: 8.4V rechargeable lithium battery
Working temperature: 10 ℃ -60 ℃
Working humidity: 0-80% RH 

Wuhan Hanliny Technology Co., Ltd. is located in the Zhongnan International Building, Wuhan City, Hubei Province. The company is mainly engaged in research and development, production and sales of soil testing instruments, plant testing instruments and environmental testing instruments. It is a comprehensive technology enterprise integrating science, industry and trade. The main products include soil/fertilizer Nutritional Parameters, soil temperature and humidity meter, soil moisture meter, soil conductivity meter, soil salinity meter, soil moisture temperature and salinity meter, soil pH/Eh tester, soil three parameter tester, soil moisture station, soil drill, soil drill comprehensive suit, root drill suit, original soil sampler, etc.; photosynthetic instrument, Leaf transpiration rate meter, Plant respirometer, canopy analyzer, root scanning analysis system, chlorophyll meter, leaf area meter, stem strength meter, leaf thickness meter, etc.; weather station, handle weather station, greenhouse environmental station, greenhouse environmental recorder, temperature and humidity recorder, CO2 recorder, rainfall record Instrument, solar radiation recorder and other instruments.
The company's products are mainly used in agriculture, forestry, teaching, scientific research, meteorology, environment and other fields. It cooperates with many agricultural universities, scientific research institutions, agricultural extension stations, soil and fertilizer stations, agricultural and forestry bureaus, etc., and has been unanimously praised by customers. The company adheres to high-quality after-sales service, technical training for each sold instrument, regular return visit, Q & A, deeply trusted and supported by users.
Hanliny adheres to the concept of innovation and pragmatism, pursuit of excellence, sincerity and customer first, will adhere to the research and development of more advanced instruments and equipment, and serve customers with high-quality products, quality and preferential prices.