The 385 is an electrically heated rain gage that provides year-round measurement of rain or snow. It is a tipping-bucket rain gage widely used in environmental monitoring applications. The 385 funnels precipitation into a bucket mechanism that tips and actuates a switch. The momentary switch closure is counted by the pulse-counting circuitry of any of the Campbell Scientific data loggers. The gage is heated so that frozen precipitation melts and is measured right away as a liquid.