Features： 1、There are three kinds of indicators, red, green and blue. According to different water content, the range of indicators can be selected according to different plant characteristics. 2、It can be planted in the soil for a long time and monitored in real time. It is simple and convenient to operate. 3、Splatter-proof design, simple and fashionable appearance, beautiful and practical, not easy to damage. 4、Made of ABS material, it is durable, corrosion resistant and long service life. 5、One key real-time monitoring of the current soil state and moisture content, rapid response, accurate measurement. 6、It is a necessary tool for gardening enthusiasts to remind plants of water content in time and keep the normal growth of plants. Specification： Condition: 100% Brand New Item Type: Hygrometer Material: ABS Working Voltage: 3V Working Current: 10uA Rated Power: 0.03w Battery: 1 x CR2032 Battery (Battery Not Included) Weight: Approx. 20g / 0.7oz Product Size: Approx. 131x25.1x10.9mm / 5.2x1.0x0.4in Package List： 1 x Hygrometer (Battery Not Included)1 x Instruction Manual