Starting at $7,084.00
  • Usually ships in 2-3 weeks



  • Calibrates sensors of any size or shape
  • Temperature ranges from –30°C to 200°C
  • Stability to ±0.015°C
  • Uniformity: ±0.02°C
  • Accuracy: ±0.25°C
  • 64mm (diameter) x 140mm (depth) well size
  • 48mm access opening


The Fluke Calibration Micro-Baths (formerly Hart Scientific) are the ultimate in portability and stability. Featuring proprietary controllers, Micro-Baths deliver outstanding performance in a tiny package and can be used anywhere for any type of sensor.

The 6102 micro-bath weighs less than 4.5 kg (10 lb.) including fluid, making it lighter and smaller than most dry-wells. You can take it where you need to go without carts or excessive effort. With the spill-proof lid in place, 6102 micro-baths can even be transported with the fluid in them.

You can count on performance wherever you go with your micro-bath. Depending on the fluid you use, each model of Micro-Bath's are stable to ±0.03°C or better. Uniformity is ±0.02°C or better for low uncertainties using a reference thermometer. Display accuracy has been improved to ±0.25°C for quick calibrations without a reference thermometer. In short, you get the stability and precision of a liquid bath in a dry-well-sized package. Don't be fooled by competitors who pour oil into a dry-well and call it a bath. Micro-baths are maximized for true fluid-bath performance.

With a 48 mm (1.9-inch) diameter and a 140 mm (5.5-inch) deep tank, a Micro-bath can calibrate any type of sensor including short, square, or odd-shaped sensors. The problems of fit and immersion are virtually eliminated by using a fluid medium rather than a dry-block calibrator. Micro-baths are perfect for liquid-in-glass and bimetal thermometers.

The 6102 has a temperature range from 35°C to 200°C, the 7102 covers –5°C to 125°C, and the Model 7103 extends from –30°C to 125°C. Stability, uniformity, and accuracy specifications cover the entire range for each bath, not just the best temperature.

All Fluke Calibration micro-baths have RS-232 ports and come with Fluke's Interface-it software. Also included are contacts to calibrate a thermal switch, eight setpoint memory storage, ramp-rate adjust, and over-temperature safety cutout. Micro-baths also feature CFC-free refrigeration and compressor-free design.