The Horiba U-10 water quality checker brings laboratory accuracy and the ease of push-button operation to water quality measurement in the field. Six parameters can be measured : pH, temperature, dissolved oxygen, electrolytic conductivity, turbidity, and, salinity. Featuring a powerful sensor and state-of-the-art functions, the U-10 makes it easy to get highly reliable water quality data simply and quickly just by submersing the sensor in the water. The U-10 is flexible enough to use for cheeking the quality of a broad range of water samples, from factory effluent to urban drainage, river water, lake and marsh water, aquatic culture tanks, agricultural water supplies, and sea water. The main unit is water-resistant, so it can be used safely even in the rain.