The 4927925 is a dual-channel reference thermometer designed for precise temperature measurement and data logging of PRTs, thermocouples, and thermistors. It features two simultaneous measurement channels with memory capacity for 15,000 time and date-stamped measurements, a real-time clock for logging, and a 1-second sample interval in normal mode. The instrument delivers high accuracy across multiple sensor types, with PRT accuracy up to ±0.011°C, thermocouple accuracy up to ±0.24°C, and precision thermistor accuracy of ±0.002°C. It supports 12 thermocouple types (C, E, J, K, L, M, N, T, U, B, R, S) and provides statistics including maximum, minimum, average, and standard deviation. The 4927925 is ideal for field applications, laboratory measurements, and calibration work where portable, high-precision temperature monitoring with comprehensive data logging is required.