Soil moisture sensor with alarm. Convenient probe equipped with ATTINY44A. The sensor is very easy to configure. Requires 2 CR2032 batteries (not included) for power supply. Sensor configuration 1. Install the batteries 2. Place the sensor in the soil when the moisture level is insufficient 3. Press the black button on the sensor - the device will remember the value 4. Water the plant 5. When the humidity drops below the value when installing the sensor, the sensor will beep. Technical data ISP output - expandable Dimensions: 140 x 15 x 2mm Weight: 10g Batteries not included https://elecena.pl/product/22624387/plant-watering-alarm-cjmcu-soil-moisture-sensor 2023-02-23 https://elecena.pl/product/22624387/plant-watering-alarm-cjmcu-soil-moisture-sensor 2025-10-28