Capacitive Soil Moisture Sensor Corrosion Resistant Plant Watering Alarm for Arduino

This module is a plant watering alarm - as simple as that. You put it into the soil near a plant and it emits a tiny chirp when the soil is dry, reminding you to water the plant. Chirp uses capacitive humidity sensing as opposed to resistive humidity sensing, this means, it does not make an electric contact with the soil, avoiding electrode corrosion and soil electrolysis and resulting in better accuracy and longer battery life.

Special care has been taken not to make it yet another source of annoyance - Chirp will be silent when it's dark and will restrict itself from making too much noise.

The alarm level can be set for each plant individually. As water is consumed by the plant, Chirp will detect the low moisture level and will start to emit rare short chirps. As more water evaporates, Chirp will increase the alarm rate. Chirp can detect if it's day or night by measuring the amount of ambient light and will not make noise when it's dark.

Size:140*15mm
Work voltage:3V
Analog Output
Soil moisture sensor
Built-in buzzer
CR2032 battery holder

Package Included:
1 x Plant Watering Alarm Capacitive Soil Moisture Sensor Corrosion Resistant Sensor for Arduino Analog Output + CR2032 Battery - included
Instructions/schematic are NOT included. We don't provide technical assistance please make sure that you are familiar with the product before purchasing.