# Soil moisture sensor, hygrometer

> Soil moisture sensor (hygrometer) compatible with Arduino and other development boards. Provides analog (AO) and digital (DO, 0 and 1) output, uses the LM393 comparator chip and operates at VCC 3.3V-5V. PCB dimensions: 30 x 15 mm, sensor dimensions: 60 x 20 mm. Includes a dupont cable for connection.

- Page: https://sigmanortec.ro/en/soil-moisture-sensor-hygrometer
- Price: 4.15 RON
- Availability: In stock; 1-2 zile
- Reference: 22085 · EAN: 5946730579711
- Category: Mechatronics and IoT > Sensors and Modules > Temperature and Environmental Sensors
- Package (shipping data): 0.007 kg
- Updated: 2026-09-23
- Shop: [Sigmanortec.ro](https://sigmanortec.ro/en/llms.txt)
- Prices: RON, VAT included; prices and stock as of 2026-10-22 03:25 (Europe/Bucharest)

## Description

Quickly monitors soil moisture for irrigation automation and IoT projects, compatible with Arduino and other development boards. Offers analog and digital output for flexible readings, uses LM393 comparator for stable switching, operates at 3.3V-5V and comes with included dupont cable for easy connection.
Soil moisture sensor, compatible with Arduino and other development boards
Analog output
LM393 comparator chip
VCC: 3.3V-5V
GND: GND
DO: digital output interface (0 and 1)
AO: analog output interface
PCB panel dimensions: 30 x 15 mm
Sensor dimensions: 60 x 20 mm
Dupont cable included
See sensor tutorial here