EMCTD Data Logger Model Number of Data Points Time Interval Between Readings Input Voltage Range for Smart Fieldmeter Data Logging.              Smart Fieldmeter Output is 0-300 mV. Software Output Connector Battery Life  
DL-03 (Logger) 8,192  Records data with time interval 0.88 sec. (for 2 hours) until memory is full, then rewrites with 2 times slower speed, etc. Max. +/- 100 mV, 8 bit autoranging (requires 1:3 voltage divider composed of 3 resistors 100 KOhm each). Included RS232 1 year of logging  
  DL-04 (Logger) 32,768 Records data with time interval from 2 sec. to 12 hours programmable. Max. +/- 100 mV, 16 bit.                (requires 1:3 voltage divider composed of 3 resistors 100 KOhm each). Included (extra cost) RS232 1 year of logging at 1/min rate    
DL-01-1 (DMM-Logger) 5,400 Records data with time interval from 0.05 sec. to 8 min., programmable. mV range +/- 400 mV,  16 bit.                    Direct connection. Included RS232 about 1 month  
  DL-01-2                            (DMM-Logger) 43,000 Records data with time interval from 0.05 sec. to 8 min., programmable. mV range +/- 400 mV,  16 bit.                    Direct connection. Included RS232 about 1 month