TR-DD
No Installation Required
Contact
4-20mA, 0-5V, RS485, Other
Normal Wirewound
Conductivity
IP68
CE
Customized
0~20ms/Cm
<+5%
0.01 Ms/Cm
DC5V,DC12V,DC24V,Other
4-20mA, 0-5V, RS485, Other
-40ºC-50ºC
≤100%Rh
5.5 MW
Veinasa
Covered with Carton Package
196g
China
Product Description

TR-DD Soil RS485 Graphite Soil EC Wireless Electrical Conductivity Sensor 4-20mA for Smart Farm Agriculture is a soil ec conductivity sensor(transmitter). It is controlled by graphite electrode and MCU.
The product has the advantages of large measuring range, good linearity, strong lightning resistance, convenient observation, stability and reliability.
Conductivity | ||
Measurement range | 0~20mS/cm | |
Accuracy | <+5% | |
Resolution | 0.01 mS/cm | |
Power supply | DC 5V | |
DC 12V | ||
DC 24V | ||
Other | ||
Cable length | Standard match: 2.5 m | |
Other | ||
Signal output mode | Current | 4~20mA |
Voltage | 0~5V | |
RS485 | ||
Other | ||
Working environment | Temperature | -40ºC~50ºC |
Humidity | ≤100%RH | |
Load capacity | Current output impedance≤250Ω | |
Voltage output impedance≥1KΩ | ||
Protection Degree | IP68 | |
Cable grade | Rated voltage:300V | |
Temperature grade: 80 ºC | ||
Product weight | 196g | |
Power consumption | 5.5 MW |
Advantage of this soil conductivity sensor(TR-DD):
1. Easy to install and low maintenance
2. High measurement accuracy, good stability, low power consumption
1. Easy to install and low maintenance
2. High measurement accuracy, good stability, low power consumption
1. The salt sensor probe is inserted into the excavated soil and buried in the soil. Do not touch the graphite electrode of the salt sensor with a hard object to avoid damage.
2. In order to ensure the accuracy of soil salt measurement, the soil moisture is moderate and the graphite electrode can be tightly attached to the soil to determine the salt content in the soil.
3. Avoid removing the sensor during installation.


2. In order to ensure the accuracy of soil salt measurement, the soil moisture is moderate and the graphite electrode can be tightly attached to the soil to determine the salt content in the soil.
3. Avoid removing the sensor during installation.
There is a 3-core aero plug at the bottom of the sensor, and the pin is defined as shown.

There is a 3-core aero plug at the bottom of the sensor, and the pin is defined as shown.
(1)if equipped with the collector produced by our company, we can connect the sensor directly with the corresponding interface on the collector by using the sensor wire.
(2) if the transmitter is purchased separately, the line sequence of the transmitter matching line is as follows:
Line color | Output signal | ||
Voltage mode | Current mode | Communication | |
Red | Power + | Power + | Power + |
Black (green) | Power ground | Power ground | Power ground |
yellow | Voltage signal | Current signal | A+/TX |
Blue | B-/RX |


(three-wire voltage, current, pulse connection) (Two-wire current output connection)
TR-DD Soil RS485 Graphite Soil EC Wireless Electrical Conductivity Sensor 4-20mA for Smart Farm Agriculture can be applied to:
Agriculture irrigation
Smart farm
Plantation
Greenhouse
Industry
Scientific experiments
Q: Are you a factory/manufacturer?
A: Yes, we are professional factory/manufacturer of weather station and relative weather sensors. We also have hot sale and widely used Veinasa-NPK.
Q: Can it add/integrate other parameters?
A: Yes it can add/integrate other parameters like soil salinity. We also have another kinds of 3 probe soil sensor which can measure soil temperature, humidity, ec conductivity, etc,.
A: Yes, we are professional factory/manufacturer of weather station and relative weather sensors. We also have hot sale and widely used Veinasa-NPK.
Q: Can it add/integrate other parameters?
A: Yes it can add/integrate other parameters like soil salinity. We also have another kinds of 3 probe soil sensor which can measure soil temperature, humidity, ec conductivity, etc,.
Q: What's the common power supply and signal output?
A: Common power supply and signal output is DC5-24V, RS485. But we can customize for you as demands.
Q: How can I collect data?
A: If you have your own data logger, you only need to buy our sensor and meanwhile we send you communication protocol. If you do not have, we can add our data logger for you, also provided with English software, which can help you read, inquire and download data.
Q: What's the lifetime of this conductivity sensor 4-20ma?
A: At least 5 years long. Every sensor has its own calibration certificate or testing report.
Q:What's the delivery time?
A: Usually, we dispatch goods in 3-5 working days after receiving your payment. But it depends on your quantity.
Q: May I know your warranty?
A: Yes, usually it's 1 year. We can send you detailed warranty document if needed.
With rich experiences in tackling problems, Veinasa aims to provide a package of meteorological solutions to your needs, whatever problems you encounters, Veinasa team always stand by your side.
Just click the below picture to send us inquiry, to know more, or get the latest catalogue and competitive quotation. Do not hesitate!
A: Common power supply and signal output is DC5-24V, RS485. But we can customize for you as demands.
Q: How can I collect data?
A: If you have your own data logger, you only need to buy our sensor and meanwhile we send you communication protocol. If you do not have, we can add our data logger for you, also provided with English software, which can help you read, inquire and download data.
Q: What's the lifetime of this conductivity sensor 4-20ma?
A: At least 5 years long. Every sensor has its own calibration certificate or testing report.
Q:What's the delivery time?
A: Usually, we dispatch goods in 3-5 working days after receiving your payment. But it depends on your quantity.
Q: May I know your warranty?
A: Yes, usually it's 1 year. We can send you detailed warranty document if needed.
With rich experiences in tackling problems, Veinasa aims to provide a package of meteorological solutions to your needs, whatever problems you encounters, Veinasa team always stand by your side.
Just click the below picture to send us inquiry, to know more, or get the latest catalogue and competitive quotation. Do not hesitate!