Extech 4-Channel Datalogging Thermometer, -100 to 1300�C

4-Channel datalogging with 6 Thermocouple types (J, K, E, T, R,S) and 2-Channel datalogging with RTD (Pt100Ohm) probes User programmable sampling rate: 1 to 3600 seconds Min/Max, Data Hold, Auto Power Off Displays [T1, T2, T3, T4] or differential [T1-T2] reading Offset adjustment used for zero function to make relative measurements Stores 99 readings manually and 20M readings via 2G SD card Records readings with real date and time stamp