Ruggedized Arduino Capacitive Analog Soil Moisture Sensor – Waterproof / Corrosion Resistant

(4 customer reviews)


This rugged capacitive analog soil moisture sensor is the most cost-effective lifetime solution for analog soil moisture measurement. This is an ideal moisture sensor for any Arduino, Raspberry Pi, ESP8266, microcontroller or IoT project application.

Save A LOT with the DIY Adosia Ninja Capacitive Soil Moisture Sensor Kit



This ruggedized capacitive analog soil moisture sensor works with Arduino, Raspberry Pi, Adosia IoT systems or any microcontroller capable of reading a 0-3V analog input signal.

The ruggedized capacitive analog soil moisture sensor is waterproof, corrosion resistant and industrially protected for optimal durability and sustained performance.

Adosia first applies a dual coat of waterproof urethane conformal seal to protect the PCB components. We then further seal out moisture with a 3:1 dual walled and glue adhesive-lined waterproof heat shrink.

Further ruggedizing and waterproofing the capacitive analog soil moisture sensor is necessary to ensure long life operation of the moisture sensor within Arduino prototypes extending to real world applications.

A rugged and waterproof soil moisture sensor increases system reliability while also lowering the total cost of ownership and reducing overall maintenance of your IoT and/or gardening systems. Without ruggedizing and waterproofing, the soil moisture sensor circuitry is all but guaranteed to short out when it gets the slightest bit wet.

Rugged Soil Moisture Sensor Benefits:

  • long and reliable field operating life
  • lowest total cost of ownership
  • low power consumption
  • compatible with Adosia IoT WiFi Control Modules

Moisture Sensor Features:

  • corrosion resistant by design
  • double coat waterproof urethane sealant
  • further sealed with glue adhesive-lined dual wall waterproof heat shrink
  • input voltage: 3.3 ~ 5.0 VDC
  • output voltage: 0 ~ 3.0 VDC
  • dimension: 98mm * 23mm (3.86in x 0.905in)
  • 12″ extendable sensor cable


  • self-watering pots and planters
  • personal cultivation setups
  • automated garden watering applications
  • nursery and tree care
  • IoT data applications


The Adosia IoT Platform

Additional information

Weight 1.3 oz
Dimensions 5 × 1 × 0.2 in
cable length

12 inches (unshielded), 5 feet (unshielded), 10 feet (unshielded), 10 feet (shielded), 20 feet (shielded), 30 feet (shielded)

4 reviews for Ruggedized Arduino Capacitive Analog Soil Moisture Sensor – Waterproof / Corrosion Resistant

  1. roberto

    Adosia does a good job ruggedizing – I haven’t had to replace one yet

  2. meiler

    These are great. They need to be recalibrated every once in a while but I haven’t had one fail in over 6 months so far

  3. growbob

    I buried my two right under drips with no issues.

  4. steve4

    these are pretty solid

Add a review

Your email address will not be published.

You may also like…