You’ll find more Hart baths in national calibration labs than any other brand, and there’s a reason for that. No one else can match the stability, uniformity, and performance of a Hart bath, and we absolutely guarantee it.

These two models are designed for high-temperature work up to 550°C. Most labs use them as salt baths for calibration of thermocouples, RTDs, and SPRTs. In fact, these baths are so good you can even do comparison calibrations of SPRTs with them. These baths are stable to ±0.005°C or better at 300°C.

Each bath has a drain, built-in cooling coils, electronically adjustable temperature cutouts, optional floor carts, and optional automation software and interface packages. (The 6050 and 6050H come with an insulated cover.)

Hart is the only company that offers complete automated calibration software packages that work with the bath interface option. Our optional software is not just a data acquisition package; it actually controls the calibration, including bath temperatures.

Choose the model that most closely matches your needs. These baths are compatible with salt for higher temperatures and also with oils for lower temperatures.