General description The 8X Soil Moisture Meter Watering Alarm is a practical gardening tool designed to help you monitor the moisture levels in your plants' soil. This yellow sensor not only alerts you when your plants need watering but also measures the pH value of the soil, ensuring optimal growth conditions. Technical specifications Color: Yellow Material: Resin Size: 18 x 9 cm Measurement allowed error: +/- 1-3 cm Usage After removing the transparent film behind the bird seat, the battery will be activated. To turn off the singing function, press both probes simultaneously or insert them into the wettest soil. When the probe is inserted into the soil, the singing should stop after a moment. If it continues, water your plants. The built-in automatic optical sensor turns off the singing reminder at night but will sing during the day to indicate sufficient power. Watering is required every 15 seconds when the alarm is singing. Regularly clean the tip of the probe with fine abrasive