2 x 4 x 3" Infusions: intravenous. Prior to the introduction of the photocell drop counter this device was used at MUSC to determine drop rate IV fluidtherapy. Needles penetrated the drop chamber and while it worked safely and well it was quickly superseded by the non-evasive photo cell. (Approx 4 inches long by 2 1/2 inches wide by 1 1/4 inches deep) black plastic box with three buttons, drops per minute scale meter on front and drop scale on back, wire attached to plastic clamp which attaches to the plastic drop counter clamp (00-11)