Gravity: Analog Waterproof Capacitive Soil Moisture Sensor - DFROBOT

Introduction

This is a new type of analog capacitive soil moisture sensor designed by DFRobot. Compared with the old soil moisture sensor, it has increased waterproof performance. Even if the sensor is fully immersed in water, it can still be used normally; the anti-corrosion performance is optimized and more Laminate design, no longer need to worry about the sensors in the soil scratching the sensor panel, resulting in accelerated corrosion of the sensor; the length of the electrode plate is increased and the circuit performance is optimized, the measurement range is expanded, and the measurement value of the sensor is more accurate!

In addition, the sensor still retains the built-in voltage regulator chip and supports a 3.3~5.5V wide voltage working environment, which means that 3.3V main control boards such as control, micro:bit, ESP32, STM8/32 main control boards, etc. The sensor can still be used normally. On a mini PC like the Raspberry Pi, you only need an external ADC to work properly.

Gravity: Analog Waterproof Capacitive Soil Moisture Sensor
Specification

Supply Voltage: 3.3 ~ 5.5VDC
Interface: 2.54-3Pin
Output Voltage: 0 ~ 3VDC
Cable Length: 1.5m
Dimension(L x W): 175 x 30mm / 6.89 x 1.18 inches

Sources : https://wiki.dfrobot.com/Waterproof_Capacitive_Soil_Moisture_Sensor_SKU_SEN0308

Shipping List
Analog Waterproof Soil Moisture Sensor *1
Waterproof Label *4