||This is a secondary sensor. Using its data is not recommended, except for periods when there are no measurements from the main sensor (until the time of writing of this note, 2002-09-13, there has been no such period). It has been found that it underestimates rainfall by about 20%.
Sensor height from ground 2.40 m.
According to the rainfall data from 2000-06 to 2006-06 from the two sensors (Rain-O-Matic and ARG100), it appears that the rainfall recorded by this sensor (Rain-O-Matic) is 86.9% of the rainfall recorded by ARG100. This value is the result of linear regression with zero constant term in the monthly rainfall values, and has a determination co-efficient d=0.991. This means that in order to get the value that would be measured by ARG100 we need to multiply the measurements of Rain-O-Matic by 1.15.