High definition backlight display screen: clearer reading at night.High quality probe: rust proof, , suitable for various soilsLock button: After the value stabilizes, click the hold button to lock the current value. If you need to re measure, please press the hold button again Widely used: Suitable for greenhouse planting, horticultural planting, farmland planting, laboratory, agriculture, etc Color: Black Material: plastic, Weight: 0.440924524 Pounds, Manufacturer: Hipzeepo