CENTER-303 thermometer / thermometer 3-1 / 2 digit display available K, J-type thermocouple (302, 303) dual-input dual display (301,303) relative readings function RS-232 output interface maximum, minimum, average reading record automatic shutdown function resolution 0.1 ℃ / 0.1oF CENTER-303 thermometer / thermometer parameters | Specifications Range K type: -200 ℃ ~ 1370 ℃ (-328oF ~ 2498oF) J type: -200 ℃ ~ 760 ℃ (-328oF ~ 1400oF ) Accuracy ± (0.3% rdg) + 1 ℃ Resolution 0.1 ℃ / 0.1oF Operating Temperature 0 ℃ to 50 ℃ (<80% RH) Storage temperature -20 ℃ to 60 ℃ (<70% RH) Battery 9V battery Dimensions 184mm × 64mm × 30mm (7.25 "× 2.5" × 1.2 ") Weight Approx 210g Accessories manual, 9V battery, holster, K-type thermocouple wire * an optional RS232 cable and software, K-type surface thermocouple attachment type battery Workbook carry coat type K thermocouple dot RS232 cable Software 300 - - - TP-K01 × 1PCS optional purchase another 301 - - - TP-K01 × 2PCS 302 - - - TP-K01 × 1PCS 303 - - - TP- K01 × 2PCS