Wireless Soil Moisture Monitoring SystemAlso known as wireless soil moisture monitoring system, the instrument host has GPS positioning function, and the large screen displays real-time collected data in Chinese, recording the number of groups, sensor connections, longitude and latitude, signal strength, and low voltage battery warning prompts.

The instrument can achieve long-term continuous monitoring of soil moisture (soil moisture). Users can flexibly arrange soil moisture sensors according to monitoring needs; Sensors can also be placed at different depths to measure soil moisture in the profile. The system also provides additional expansion capabilities, which can add corresponding sensors according to monitoring needs to monitor soil temperature, soil conductivity, soil pH value, groundwater level, groundwater quality, as well as air temperature, air humidity, light intensity, wind speed and direction, rainfall and other information.

Features of wireless soil moisture monitoring system:
Host functional features:
1. The wireless soil moisture monitoring system comes with wireless transmission function, which can be uploaded through GPRS. The measured data can be sent to the server in real time with one click or by setting the data transmission interval. The data can be viewed and downloaded on the webpage, no matter where you are as long as you have internet access;
2. Equipped with a mobile app that supports both Android and Apple systems, real-time data can be viewed from anywhere as long as there is internet access;
3. Low power design, increased system monitoring and protection measures to avoid system crashes;
4. Chinese LCD display, capable of displaying current date and time, sensor measurement data, storage capacity, number of stored data, and other information;
5. The host has a large data storage capacity: the internal Flash of the device can store the latest 30000 pieces of data, and the standard 4G memory card can store unlimited amounts of data, and can also store data simultaneously with Flash;
6. Built in lithium battery power supply: 7.4V2.8Ah lithium battery, with charging protection and low voltage prompt function. The external power supply is an 8.4V (1000mA or above) DC power supply;
7. Collection settings: Used without human supervision, it can be set to collect data at regular intervals or manually;
8. Voice settings: The voice broadcast function can be set to be on/off/over limit as needed;
9. Voice alarm function: When the host voice is set to over limit, it can broadcast over limit information through voice;
10. The host can connect different types of sensors through a hub without affecting each other's accuracy;
11. Equipped with GPS positioning function, the geographic coordinates of the collection point can be automatically displayed during data collection;
12. Expandable sensor types and quantities, up to 32 types (with IP67 extension cable and integrated structure).
Manage cloud platform functions:
1. The built-in instrument cloud management platform includes a C/S architecture, which can summarize and analyze data from all portable and online devices without losing data backup. The viewing and operation methods include both web and mobile devices (available on Android/Apple systems);
2. Display the data collected by each sensor, detection time, and GPS coordinate information of the collection location;
3. Data can be uploaded to the management cloud platform through GPRS or USB data cable import. Data within the platform can be downloaded, analyzed, and printed;
4. The platform supports device data storage and provides sufficient capacity for unlimited storage;
5. The platform provides report formats such as curves and tables for device data, and the data can be exported and imported;
6. The platform can combine data to create reports, print reports, and export reports;
7. The software can be upgraded online.

Technical parameters of wireless soil moisture monitoring system:
Handheld device parameters:
Recording capacity: The internal Flash of the device can store 30000 pieces of data, and the standard 4G memory card can store unlimited amounts of data
Collection time interval: 5 minutes to 99 hours
Voice Broadcast: Mandarin Chinese
Working power supply: 7.4V lithium battery power supply
Working current: standby power consumption of 10mA, other power consumption depends on the configuration
Sensor technical parameters:
Soil temperature technical parameters:
Temperature unit: ℃
Test scope:- 40℃～100℃
Accuracy: ± 0.5 ℃
Sensor length: ≥ 25cm
Resolution: 0.1 ℃
Soil moisture technical parameters:
Moisture unit:% VWC
Response time: ≤ 2 seconds
Soil moisture resolution: 0.1%
Moisture content testing range: 0-100%
Relative percentage error: ≤ 3%

Soil moisture sensor:

The soil moisture sensor adopts the internationally popular on-site testing principle of soil moisture: frequency domain reflection principle (FDR). This technology was early applied in the United States, where the sensor emits electromagnetic waves of a certain frequency, which are transmitted along the probe and return to the bottom to detect the output voltage of the probe. Since the change in soil dielectric constant usually depends on the soil moisture content, the soil moisture content can be calculated from the relationship between the output voltage and moisture. Moisture is the main factor determining the dielectric constant of soil. Measuring the dielectric constant of soil can directly and stably reflect the true moisture content of various soils. The FDR soil moisture sensor can measure the volume percentage of soil moisture, which is independent of the mechanism of the soil itself. This principle is currently a popular soil moisture sensor measurement method internationally.

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