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Soil Sensor Kit - Pro

This is a soil moisture detection kit designed for Arduino automatic watering system. When the soil moisture level reaches the module setting values (adjustable) and will output low level and analog signal. It is equipped with waterproof sensor probe with high corrosion resistance to ensure a long lifetime. DC 3.3-12V wide working voltage and digital analog signal dual output ideal for your soil moisture detection projects.

A soil moisture sensor can read the amount of moisture present in the soil surrounding it. It's a low tech sensor, but ideal for monitoring an urban garden, or your pet plant's water level. This is a must have tool for a connected garden! This sensor uses the two probes to pass current through the soil, and then it reads that resistance to get the moisture level. More water makes the soil conduct electricity more easily (less resistance), while dry soil conducts electricity poorly (more resistance).

Quick Spec

  • Working Voltage: DC 3.3-12V
  • Working Current: <20m(Output Current:<30mA)
  • Module Size: 36X15X7mm/1.42X0.59X0.28inch(L*W*H)
  • Sensor Pin Pitch:5mm
  • Sensor Connecting Port: XH2.54 2P


Instructions for use:
1. [+] is connected to the positive pole of the power supply, [-] is connected to the negative pole of the power supply. Please do not reverse the connection. It is responsible for burning the chip. After the power is connected, the [P] power indicator lights up and the module works normally.
2. The blue potentiometer adjusts clockwise/counterclockwise to increase/decrease the probe detection sensitivity. Take the "thermal sensor" as an example, assuming the default is 25 degree trigger, [DO] output is active low. Clockwise adjustment , the temperature can be triggered below 25 degrees. Counterclockwise is higher than 25 degrees trigger.
3. It indicates that the adjustment range has exceeded the test threshold when the potentiometer is adjusted clockwise until the [S] output indicator is on. The threshold value is exceeded when the counterclockwise adjustment is unable to adjust. The threshold cannot be exceeded when adjusting, otherwise it cannot be used.
4. [AO] output is analog (voltage), which can be directly detected by the AD port of the MCU.

Shipping List

  • 1 x Soil Moisture Sensor Module
  • 1 x 4-pin Connector Header
  • 1 x Sensor Probe


Soil Sensor Kit - Pro

  • Brand: Generic
  • Product Code: SOIL-KIT-PRO
  • Weight: 0.023kg

    • Stock

    Warehouse Stock Status Location
    Centurion Limited Stock UL501
    Stellenbosch In Stock 867

    We ship free of charge between branches to complete your order.

  • R98.00 (Inc Tax: R112.70)


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Tags: soil, sensor, kit, moisture, pro, watering, irrigation