# Capacitive hygrometer sensor, soil moisture, 5V, v2.0

> Capacitive hygrometer sensor for measuring soil moisture, version 2.0. Supply voltage 3.3-5VDC, analog output proportional to moisture, current consumption approximately 5mA, 3 pins, dimensions 98 x 23mm. No exposed metal electrodes, suitable for long-term Arduino projects or irrigation automation. Note: when powered at 5V, output may exceed 3.3V on 3.3VDC boards.

- Page: https://sigmanortec.ro/en/capacitive-hygrometer-sensor-soil-moisture-5v-v20
- Price: 5.45 RON
- Availability: In stock; 1-2 zile
- Reference: 33263 · EAN: 5949876275011
- Category: Mechatronics and IoT > Sensors and Modules > Level and Liquid Sensors
- Specifications: Input Voltage: 5V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.
- Package (shipping data): 0.011 kg
- Updated: 2026-09-14
- Shop: [Sigmanortec.ro](https://sigmanortec.ro/en/llms.txt)
- Prices: RON, VAT included; prices and stock as of 2026-10-22 02:21 (Europe/Bucharest)

## Description

Ideal for monitoring soil moisture in Arduino projects or irrigation automation, this capacitive sensor offers stable and durable measurement, without exposed metal electrodes. It has an analog output proportional to humidity, operates at 3.3-5V, low consumption of approximately 5mA and a compact 3-pin format, easy to integrate into assemblies.
Soil Sensor Capacitive hygrometer for measuring soil moisture.
The analog output varies depending on the supply voltage. A dry ground will transmit a voltage as close as possible to the supply voltage on the analog pin. Do not use the sensor powered at 5VDC on boards that work at 3.3VDC. The analog output will exceed the 3.3V threshold. In use with 3.3V boards powered by 3.3VDC.
For operation exclusively on 3.3V, replace the resistor in U2 with a 3.3VDC voltage converter.
This module is recommended for use in a practical and long-term project due to the lack of exposed metal elements. Using the usual sensor leads to corrosion of the elements due to the reaction of the metal with moisture when the current is passed. The module eliminates this problem.
The module components are not waterproof. It is recommended to isolate the electrical components in case of contact with water or high humidity.
Specifications:
Supply voltage: 3.3 - 5VDC
Logical voltage: 0 - Supply voltage
Operating current consumption: 5mA
Number of pins: 3
Dimensions mm: 98 x 23mm