â·ÃÊͺ¶ÒÁÃÒ¤Ò The Extech TM500 displays and stores temperature readings from up to 12 thermocouple temperature probes à¤Ã×èͧÇÑ´ÍسËÀÙÁÔ TM500 12-Channel Datalogging Thermometer Features: Simultaneously displays CH1 to CH8 or CH9 to CH12 Offset adjustment used for zero function or to make relative measurements Stores 99 readings manually and 20M readings via 2GB SD card Records readings with date and time stamp in Excel® format for further analysis User programmable sampling rate from 1 to 3600 seconds Min/Max, Data Hold, Auto Power Off Complete with 8 AA batteries, 12 general purpose Type K bead wire temperature probes, SD card, and hard carrying case Specifications: Type J Range: -148 to 2102°F (-100 to 1150°C) Type K Range: -148 to 2372°F (-100 to 1300°C) Type T Range: -148 to 752°F (-100 to 400°C) Type E Range: -148 to 1652°F (-100 to 900°C) Type R Range: 32 to 3092°F (0 to 1700°C) Type S Range: 32 to 2732°F (0 to 1500°C) Resolution: 0.1°/1° Basic Accuracy: ±0.4% rdg (+1.8°F/+1°C) types J, K, E, T; ±0.5% rdg (+5°F/+3°C) types R, S Datalogging: 20M data records using a 2GB SD card Dimensions: 8.9 x 4.9 x 2.5" (225 x 125 x 64mm) Weight: 2.1lbs (944g) Extech Temperature Thermometer TM500 à¤Ã×èͧÇÑ´ÍسËÀÙÁÔ