The Moseley Model 680 Series Strip-Chart Recorders are general purpose laboratory and industrial instruments basically designed to plot cartesian coordinate graphs from DC electrical information in a rectilinear form on standard 6 inch by 100 foot chart paper with 5 inch writing width (12 cm). The physical construction of the instrument makes it readily adaptable to bench or rack mounting. Units are light weight and easily portable. All four models are available in metrically scaled and calibrated models. Available external accessories and options provide combinations to meet almost any requirement.