Monarch revolutionized the paper recording industry with the introduction of the cost-effective two-channel DataChart 1200 series of paperless recorders in 1992. Monarch continued this trend with the introduction of the powerful DataChart 3000 in 1996. The DC3600 provided measurement, computation, display, recording and review of up to six direct and six computation channels. 1998 saw the introduction of the DataChart 4600 series of multi-channel color recorders with more features and up to 12 live inputs. Today this family of DataCharts are the most powerful, cost-effective, versatile, multi-channel paperless recorders available worldwide.
(Source http://www.monarchinstrument.com/datachart.htm)

The DC1250 is a feature rich digital recording system offering 2 universally configurable isolated inputs for measuring DC voltage, DC current, thermocouples, RTD’s as well as frequency and pulse inputs. 4 internal alarm set points, 2 alarm relay outputs and 1 digital control input are all standard. Combining small package size with extreme flexibility make the DataChart 1250 a powerful, yet economical, digital data recording system.  
(Source http://www.monarchinstrument.com/dc1250.htm