Houseplants: resistant to sun and high temperatures. designed for outdoor use, the sturdy plastic will last a long time and meet your needs Plant water meter: clear scale, buoy design, easy to understand, can intuitively see the water level, suitable for different people Buoy pot meter: when there is no water in the pot, the water gauge buoy is at the bottom. when you pour in water, the buoy floats Soil meter probe: this is suitable for all kinds of pots and grass pots. made of plastic, practical and convenient Pot water moisture: this indicator display water level, remind water refill when there is no water, suitable for daily use.Its okay to reach out if you need any help with this item