Three Temperature and Three Humidity Soil Moisture Recorder
1. Introduction
The soil moisture sensor is a high-precision, high-sensitivity sensor that measures soil temperature. Its working principle is that measuring soil moisture through FDR (frequency domain method) can correspond to soil volumetric moisture content, which is a soil moisture measurement method that conforms to current international standards. The transmitter has signal acquisition, zero drift and temperature compensation functions. This sensor is suitable for fields that need to measure soil moisture, such as meteorology, environment, agriculture, forestry, water conservancy, electricity, etc.
2. Features
High measurement accuracy, fast response and good interchangeability
With power reverse connection protection function
Epoxy resin casting, good sealing and corrosion resistance, can be buried in the soil for a long time
Small size design, easy to carry, easy installation, operation and maintenance.
Stainless steel probes guarantee longevity.
Reliable performance, less affected by soil salinity, suitable for various soil types
3. Technical parameters
⊙Accuracy: ±3%
⊙ Measuring range: 0-100%
⊙ Measurement stabilization time: 2 seconds
⊙Response time: <1 second
⊙Probe length: 5.5cm
⊙Probe diameter: 3mm
⊙Probe material: stainless steel
⊙ Circuit sealing: epoxy resin
⊙Working current: 25～35mA, typical value 28mA (voltage type)
⊙ Measurement frequency: 100MHz
⊙Measuring area: A cylinder with a diameter of 7cm and a height of 7cm surrounding the central probe with the central probe as the center
⊙ Lead length: 2.5 meters (can be customized)
★Voltage output type
Supply voltage: 7-24v DC
Output signal: 0.4-2v or 0-2v
Humidity value=(output voltage-0.4)/1.6*100-40 or output voltage/2*100-40
1. Introduction
The soil temperature sensor is a high-precision, high-sensitivity sensor for measuring soil temperature. Its working principle is to read the temperature value through a high-precision digital temperature chip. The transmitter has signal acquisition, zero drift and temperature compensation functions. This sensor is suitable for fields that need to measure soil temperature, such as meteorology, environment, agriculture, forestry, water conservancy, electricity, etc.
2. Features
High measurement accuracy, fast response and good interchangeability
Easy installation and simple operation
With power reverse connection protection function
Epoxy resin casting, corrosion resistance
3. Technical parameters
⊙Accuracy: ±0.2℃
⊙Measuring range: -40℃～60℃
⊙ Lead length: 2.5 meters (can be customized)
⊙ Circuit sealing: epoxy resin
⊙Stable time: 500ms after power-on
⊙Power consumption: normal 20mA, peak 50mA
★Voltage output type
Supply voltage: 7-24v DC
Output signal: 0.4-2v or 0-2v
Temperature value=(output voltage-0.4)/1.6*100-40 or output voltage/2*100-40
There are two ways to plug in the sensor:
1、Quick measurement method: Select a suitable measurement location, avoid stones, make sure that the steel needle will not touch hard objects such as stones, plan the topsoil according to the required measurement depth, and maintain the original tightness of the soil below. Hold the sensor body and insert it vertically into the soil. When inserting it, do not shake it back and forth, and make sure it is in close contact with the soil. In a small range of a measuring point, it is recommended to measure multiple times to obtain an average.
2、Buried measurement method: vertically dig a pit with a diameter of more than 20 cm, the depth is as required for the measurement, and then insert the sensor steel needle into the pit wall horizontally at a predetermined depth, and bury the pit and compact it to ensure close contact with the soil. After a period of stabilization, measurements and recordings can be made for days, months, or even longer.
This method is used for multi-layer soil moisture detection, and the humidity heads are arranged at a distance of 10cm to prevent mutual interference. Do not shake the sensor when inserting to prevent the sensor probe from being bent and damaging the steel needle.
Related products
-
Integrated tipping bucket rainfall monitoring s...
Features ◆ It can automatically collect, record, charge, work independently, and do not need to be on duty; ◆ Power supply: using solar energy + battery: the service life is more than 5 years, and the continuous rainy working time is more than 30 days, and the battery can be fully charged for 7 consecutive sunny days; ◆ Rainfall monitoring station is a product with data collection, storage and transm...
-
Composite portable gas detector
System Description System configuration 1. Table1 Material List of Composite portable gas detector Composite portable Gas Detector USB Charger Certification Instruction Please check materials immediately after unpacking. The Standard is necessary accessories. The Optional is can be choose according to your needs. If you have no need to calibration, set the alarm parameters, or read the...
-
Indoor temperature and humidity sensor
1、Features ◆The real-time temperature and humidity data on site can be displayed after power-on, without the help of computers and other equipment; ◆High-definition LCD display, the data is clearly visible; ◆Automatically switch real-time temperature and humidity data without manual switching and adjustment; ◆The system is stable, there are few external interference factors, and the data is accurate; ◆Small size, easy to carry and fix. 2、Scope of application Widely used in supermarkets, fac...
-
Ultrasonic Level Difference Meter
Features ● Stable and reliable: We choose high-quality modules from the power supply part in circuit design, and select high-stable and reliable devices for the procurement of key components; ● Patented technology: Ultrasonic intelligent technology software can perform intelligent echo analysis without any debugging and other special steps. This technology has the functions of dynamic thinking and dy...
-
Compound single point wall mounted gas alarm
Product Parameters ● Sensor: Combustible gas is catalytic type, other gases are electrochemical, except special ● Responding time: EX≤15s; O2≤15s; CO≤15s; H2S≤25s ● Work pattern: continuous operation ● Display: LCD display ● Screen Resolition:128*64 ● Alarming mode: Audible & Light Light alarm -- High intensity strobes Audible alarm -- above 90dB ● Output control: relay output with two wa...
-
Portable Handheld Weather Station
Features ◆ 128 * 64 large-screen LCD displays temperature, humidity, wind speed, average wind speed, maximum wind speed, wind direction, and air pressure value; ◆ Large-capacity data storage, can store up to 40960 weather data (data recording interval can be set between 1 ~ 240 minutes); ◆ Universal USB communication interface for easy data download; ◆ Only need 3 AA batteries: low power consumption ...
