THERMOMETER he compact and rugged Extech EA15 temperature data logger and dual input thermometer accepts types J, K, E, T, R, S and N thermocouples. The Extech EA15 temperature data logger features precision temperature readings and the capability of measuring the differential temperature between two probes. Featuring a large backlit dual reading display capable, the Extech EA15 temperature data logger is capable of showing [T1 and T2], [T1-T2 and T1] or [T1-T2 and T2]. The display can show temperatures in units of °F, °C, and K (Kelvin). The built-in data logger stores up to 8800 data sets and an RS-232 port makes it easy to transfer data to a PC for analysis. The Extech EA15 temperature data logger and dual input thermometer is a precision instrument that features a basic accuracy of ±0.05% (+1.5°F/+0.75°C) and a resolution of 0.1°, making it an excellent tool for a wide range of applications. The Extech EA15 temperature data logger is equipped with a timer function that displays elapsed time plus the time when MIN and MAX readings are taken. Also, the Extech EA15 temperature data logger is equipped with an OFFSET key that is used for zero function to make relative measurements. Features: Dual input thermometer accepts Types J, K, E, T, R, S, and N thermocouples Built-in datalogger stores up to 8800 data sets RS-232 port to transfer data to PC for analysis (PC software and cable included) Compact and rugged design features large backlit display Displays [T1 plus T2] or [T1-T2 plus T1] or [T1-T2 plus T2] Timer function displays elapsed time plus the time when MIN and MAX readings are taken Records Max/Min readings for later recall Includes Windows® compatible software and data cable Complete with built-in stand, protective holster, two Type K bead wire temperature probes and batteries