The Bureau of Reclamation performed an independent evaluation of an ETI (Electronic Techniques, Inc.) precipitation gauge at the High Altitude Site on the western slope of the Wasatch Plateau in central Utah. The ETI gauge could provide a desirable alternative to conventional recording gauges in several applications, including evaluation of cloud seeding projects, if it performs as advertised. The testing program was intended to determine its performance in a winter mountain environment. The ETI precipitation gauge proved to be reliable from time of installation in late November 1992 until removal in late March 1993. The only problem found was an occasional tendency for the gauge to falsely indicate minor snowfall amounts, usually 0.01 in. snow water equivalent, during relatively warm midday periods. Observations indicated that the ETI gauge can provide accurate precipitation measurements of mountain snowfall when protected from significant wind.
United States Department of the Interior, Bureau of Reclamation, "Precipitation Gauge Testing on the Wasatch Plateau, Utah, During Early 1993" (1993). Meterology. Paper 1.