Sensor for measuring Sparkfun soil moisture

The soil moisture sensor with comparator LM393 has an analogue and digital output (with adjustable switching threshold). modHUM

Soil moisture sensor based on soil resistivity meansurement

Earth humidity sensor with analogue output, supplied with 3.3 to 5.5 V voltage with Gravity connector. DFRobot SEN0193

Resistive soil moisture sensor. The board is equipped with a Grove connector and communicates via an analog interface. Seeed Studio 101020008

Soil moisture sensor with analogue output. It has a shape resembling a fork, which makes it easy to put it in the ground. The voltage level of the analog output increases in proportion to the ground moisture level. The sensor can be used in an automatic watering system. Version with a 3.5 mm ARK connector. SEN-13637

Capacitive soil humidity sensor with I2C interface powered by 3-5V. Adafruit 4026

Soil moisture sensor with analog output. The module comes with a probe with metal tips.

Soil moisture sensor with analog output. The probe has two pointed tabs, making it easy to insert into the ground. It is supplied with the voltage of 3.3V or 5V. DFRobot SEN0114

Waterproof soil moisture sensor with analog output. The probe has a pointed tip, which allows it to be easily inserted into the ground. It is supplied with the voltage from 3.3V to 5.5V. DFRobot SEN0308

Module with a soil moisture sensor for the M5Stack sets. It has an analog output and a digital output with adjustable reaction threshold. M5Stack U019

Capacitive soil moisture sensor with analog output. The board is equipped with a Grove connector and communicates via a analog interface. Seeed Studio 101020614

Soil moisture sensor with I2C interface. The probe has two pointed tabs, making it easy to insert into the ground. The sensor is supplied with the voltage of 3.3 V or 5 V. SparkFun SEN-17731

Soil moisture sensor dedicated to micro:bit. It is supplied with the voltage from 3.3 V to 5 V and communicates via an analog signal. SparkFun SEN-15272

Kit for controlling soil moisture of cultivated plants. It contains the HAT Mini module and soil moisture sensors. Pimoroni PIM510

A set of three capacitive soil moisture sensors for a home automatic irrigation system. Pimoroni PIM520

Capacitive soil moisture sensor with pump for M5Stack sets, equipped with holes compatible with LEGO. M5Stack U101