The legendary status of the Aquametrix differential probe is the benchmark by which all of our sensors are manufactured. Nothing gets the Aquametrix label unless we are satisfied that it will stand up to abuses in water that other products cannot. Water Analytics will never make a "me too" product. Every sensor and every analyzer that makes it to the marketplace is a world class leader. Everything you see in our catalog is best in class when it comes to durability, value and simplicity.