FK08B Densimeter is a versatile density measure instrument. The instrument was designed based on Archimedes' principle, which states that a body immersed in a fluid apparently loses weight by an amount equal to the weight of the fluid it displaces.Unlike general buoyancy method that weigh a sample immersed in liquid, the instrument determined the density of sample by measure the weight of needed liquid to fill a vessel the sample immersed in. If the density of liquid exactly known, the relative density of sample can be ease to calculate. Designed accordingly, the instrument can be applied to measure the density of solids, viscous and pasty substances, as well as liquids. With advantages of simple structure, ease to use and low-cost, it is able to meet the needs of much more areas. Technical data           power supply connection               Voltage                            220/110 VAC ±10%       Line frequency                      50Hz       Build in battery recharge time         ≥48 hours   (portable mode: FK08-II)          Sample amount                           Volume                           10~300 ml (cm3)       Weight                          ≤ 600 gram                           Density measurement       Range                         0.1~22.5g/ml(g/cm3)       Accuracy                       0.001g/ml(g/cm3)    Temp. Compensation (water)         20℃～40℃   Environment       1. Ambient temperature           10℃to 40℃(50℉to 104℉),       2. Relative humidity              85%RH or less (no condensation)       3. Avoiding vibration, shock and convention.       4. Maximum affordable weight           1000 gram