Description
Specification:
Size: 140 x 15mm/5.5 x 0.6 inch
Work Voltage: 3V
How it works:
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 its day or night by measuring the amount of ambient light and will not make noise when it’s dark.
Package Included:
3 X CJMCU Plant Watering Alarm Alerter Humidity Moisture Sensor Module Soil Sensor