High precison API combined form hydrometers made to exceed API specifications, which incorporate a thermometer in the hydrometer

The temperature standardization is 60/60F. The hydrometer scale division are 2.0 degrees farenheit. The hydrometers will perform with the same accuracy as the ASTM hydrometers with mercury thermometers.

The thermometer is made with a non-mercury, blue spirit, has a range of 0 to 150 degrees farenheit and is mounted in thebody of the hydrometer. Length of hydrometer is 15 inches.

Used to measure the density according to API degree scale for petroleum applications.