TR-57U Hand Held Portable USB Data Collecter

Closeout.  Brand New.  All sales are final. TR-57U Compatible Models: TR-51A, TR-52, TR-51, TR-51S, TR-52S, TR-71U, TR-72URecording Capacity: 256,000 data readings, 16 units of TR-71U at full data (16,000 readings x 16), Collect and manage data from up to 250 separate collections.Functions: Downloading Data (possible to display results of upper and lower limit check after downloading), Display Saved Data Graphs, Set Recording Start for Remote Data Loggers, Display Saved Data Highest and Lowest measurement valuesLCD Display: Contrast Adjustment, Backlight FunctionPower: Two AAA Alkaline Batteries (LR03), Can use rechargeable AAA Ni-Cd or Ni-MH 1.2V batteriesBattery Life: Used 30 minutes daily is about 160 days, Used 1 hour daily is about 100 days, Used 2 hours daily is about 50 daysData Backup: For about 5 days from the time of battery removal (If a working battery has been in the unit for more than twenty-four hours) For about 1 year with batteries in use (If all battery power is lost the stored data will be lost)PC Communication Interface: USB / RS-232C: 19200bpsData Logger Communication Interface: RS-232C Communication (Speed : 9600bps), Optical Communication (Speed : 2400bps)Interface Communication Time: Data from TR-57U to Computer : One Full Logger's Data:USB 5 sec./RS-232C 25 sec.Data from TR-7U Series to TR-57U via cable : One Full Logger's Data:50 sec Dimensions: H125mmx W58mm x D23.8mm (excluding protruding part)Weight: Approx. 115g (Including 2 AAA Alkaline batteries)Operating Environment: Temperature : 0 °C to 50 °C, Humidity : Less than 90%RH, (Without dew condensation)