1purpose：
This instrument adopts the principle of standing wave measurement and is used for rapid determination and recording of soil moisture.
IIperformance index：
1. Measurement parameter: Soil volumetric moisture content, unit:% (cubic meter/cubic meter)
2. Range: 0-100%
3. Accuracy: ± 2% within the range of 0-50%
4. Measurement area: 90% of the influence is within a cylinder with a diameter of 3cm and a length of 6cm surrounding the central probe
5. Stable time: about 10 seconds after power on
6. Corresponding time: enter the steady-state process within 1 second
7. Sealing material: ABS engineering plastic
8. Probe material: stainless steel
9. Cable length: 3 meters
10. Manual and automatic can be freely switched, and automatic measurement can be set with a time interval of 1-99 minutes;
11. Memory: 4G (TF card)
12. 7.4V rechargeable lithium battery or direct use of AC power;
13. Equipped with voice broadcast function, it can set voice alarm for exceeding the limit value, and provide real-time Mandarin voice broadcast for exceeding parameters. It can directly broadcast real-time environmental parameter values (optional).
14. After an unexpected power outage, the host automatically saves data to the TF card;
15. Alarm function and GPS positioning (optional)
16. The probes can be interchanged, and after manually scanning the sensor, they can be used directly without affecting the accuracy of the sensor;
main features
1. Integrated design, LCD screen display, capable of manually or freely setting interval time for information collection, storage, and computer communication;
2. High measurement accuracy and fast corresponding speed
3. The soil has a relatively small impact and is widely used in various regions
4. Low price, suitable for China's national conditions
IIIUsage：
1. Insert the probe completely into the soil and compact it to ensure close contact with the soil,
2. Turn on the power switch of the monitor and read the measurement results after 10 seconds
3. The measured point should avoid areas with many holes, stones, and roots
4. When measuring in a harder place, drill a hole (with a diameter smaller than the probe) first, and then insert it into the soil for measurement
5. When measuring soil moisture at depth, a specialized soil drill (equipped separately) can be used to drill holes, and then the probe can be inserted into the measurement
6. The sensing probe should prevent severe oscillation and impact, and should not be struck with hard objects
5、 The warranty period for this product is one year.