Functions:
1. It has the function of showing mixture proportion, it can show % value directly. It is suitable for researching and developing new materials.
2. It has the function of HI limit and LO limit, can judge whether the density, concentration of the sample is appropriate or not, and it is equipped with buzzer.
3. It can easily be connected to the PC and the printer by RS-232.
4. It has the function of density and volume change (can set the time of 1, 10, 30, 60sec)
5. Under liquid testing mode, the error caused by air buoyancy can be compensated.
6. Can directly show the solution concentration by the specific gravity of testing solution.
Specifications:
Model: GP-300S 
Measuring range: 0.01-300g 
Density precision of solid mode: 0.001 g/cm3
Precision of liquid mode: S.G  0.001 , Con  0.1%