Used to predict the earliest safe time for the removal of on-site concrete forms and to determine proper time for loading and post-tensioning and termination of cold weather protection. The unit consists of single or four-channel meter with LCD readout. Displays temperature in large easy-to-read digits with a secondary level of readout displaying logging interval, channels, time and date. Operating range of -300.0 °F to 999.9 °F, 1000 °F to 2500 °F with a resolution of 0.1 °F/1 °F. Low impact printer with (5) rolls of paper. Logging intervals user selectable at 1, 2, 5, 10, 15, 30, 60, 120, and 180 minutes. Celsius model -200 °C to 999.9 °C, 1000 °C to 1370 °C with a resolution of 0.1 °C/1 °C. Accuracy ±1 °F, ±0.5 °C. Comes standard with (4) AA batteries, operation manual and case. Optional RS-232 computer download, Windows compatible software and 12 VDC power supply.