two tunnel data logger with voltage current temperature (thermocouple) K.J.PT type, with USB, up to 16000 data record point Multi-function record meter ... to measure the voltage, low current (0-24mA), high current (0 ~ 600A), temperature (thermocouple), temperature (thermal resistance RTD), etc.Features:l Long time ... -TKV2-TJ R2-TKA1-TK R1-TJA2-TK R2-TJPict Temperature data logger with USB VA602-XX-XX