Gravity: Analog Capacitive Soil Moisture Sensor - Corrosion Resistant This product measures soil moisture levels by capacitive sensing, rather than resistive sensing like other types of moisture sensor.
Waveshare Sensors Pack Tens of Different Sensors in One Pack.
Liquid Level Sensor
Motor Speed Sensor Module This is a speed sensor, the major goal is to check the rate of motor.
Funduino Moisture/Drop Sensor This Drop sensor for example can be used to measure the humidity of potting soil. But it also can be used to measure a water level.
Funduino Moisture Sensor This Moisture sensor for example can be used to measure the humidity of potting soil. But it also can be used to measure a water level.
Gravity: Digital Microwave Sensor (Motion Detection)The microwave sensor applies the Doppler effect to detect moving objects using microwaves.