calibration of the PH sensor has a certain periodicity, and the calibration cycle is different according to different use conditions. Generally, it can be calibrated once every four to eight weeks.

The soil moisture meter is also called Mobile Handheld Soil Moisture Monitor. The instrument can detect two parameters of soil moisture and soil temperature. Because the instrument is small and easy to carry, agricultural technicians can take it to the field at any time.

By embedding IoT sensors in agricultural soils, farmers can monitor soil moisture content and understand its chemical composition in real-time around the clock. These devices can automatically notify farmers when soil moisture or nitrogen, potassium, phosphorus, sulfur and other elements reach unsatisfactory values.

Smart agriculture or IoT agriculture involves 6 system solutions including video surveillance system, intelligent greenhouse environment monitoring system, picking control system, processing control system, traceability system, acquisition, circulation control and sales control system.

The smart agricultural greenhouse monitoring system can wirelessly collect and transmit the temperature, humidity, light, soil temperature, soil humidity, CO2 concentration, leaf humidity, dew point temperature and other environmental parameters in the greenhouse in real time.

A sensor that outputs a digital quantity is a digital sensor.A sensor that outputs an analog quantity is an analog sensor.

There are errors in the daily maintenance and management of the soil moisture sensor. Many problems are mostly caused by improper installation, the failure of the instrument itself, and inadequate maintenance and management. Therefore, the daily maintenance of the observation instrument should be strengthened, and problems should be found and solved in time to ensure that the soil moisture is auto···

it is of great significance for the real-time service of agricultural production and theoretical research to measure the soil moisture status frequently and master the change law of soil moisture.

The soil moisture monitoring station can realize long-term continuous monitoring of soil moisture (soil moisture). Users can flexibly arrange soil moisture sensors according to monitoring needs; they can also arrange sensors at different depths to measure soil moisture in profiles.

NBL-S-PH soil pH detector is developed and supplied by NiuBoL. The instrument can be directly inserted into the soil to test the pH value and read directly. It plays a very important role in guiding agricultural scientific research and agricultural production.