You are comparing manual dosing to controlled dosing here. My dosing pump that does not use weight whatsoever, delivers consistent volume of my dosing liquid. It cant read over or under the line. Over a long period of time, the tubing can wear out and lead to a slight change in output (2% change in a year is typical). A dosing pump does not have those sorts of human error and there are a plethora of options already available for that.Yeah you are right in one way but the big thing is human error ... not everybody Measure liquid the same way though
People could stop pouring at under the line, on line or above the line.. people have their own version of whatever the measurement is... weigh the product eliminate the guess-work
The only novel thing here is that the dosing containers are weighed. That does not make this more accurate whatsoever because if my dosing pump delivers 1.2ml, that will weigh 1.2g no matter what. If this device delivers 1.2ml, but measured incorrectly at 1.1g, it will end up inaccurately dosing an extra 0.1ml more than it should because the weight had an error. Even though they say this will alleviate the need for calibration (which is minimal anyway, about 2% per year on a quality pump), they just added an extra failure point that can actually make the entire system less accurate.