This moisture meter does not require batteries and uses a simple color scale: blue = no need to water, white = time to water. To use, gently insert as deep as possible into your plant’s soil, taking care not to damage any roots. Wait 20-30 minutes to read. If the window is completely white, water your plant as instructed on your care card. If the window is blue, hold off on watering until it turns completely white. You may leave the moisture meter in the soil of your plant, or remove it and insert again when you believe it may be time to water.  Find more details and information about your new moisture meter here, or purchase them on their own here. Please note that Léon & George does not take responsibility for damage caused by incorrect or forceful use of the moisture meter.