Fluke Calibration 1524 Reference Thermometer (formerly Hart Scientific) is a high-accuracy, dual-channel thermometer designed for precise temperature measurements using PRTs, thermocouples, and thermistors. It delivers accuracy up to ±0.002°C for thermistors, ±0.011°C for PRTs, and ±0.24°C for thermocouples, making it a reliable tool for laboratory and field applications.

With dual-channel capability, the 1524 allows simultaneous measurements, increasing efficiency. It features a real-time clock and memory for 15,000 time- and date-stamped readings, supporting logging at intervals from three times per second to once per hour. The large backlit LCD provides real-time data visualization, including maximum, minimum, average, and standard deviation calculations. Data can be transferred to a PC via RS-232 for further analysis.

Built for durability and portability, the 1524 operates on three AA batteries or an external power adapter, ensuring reliable performance in demanding environments.