【Professional Design】The animal clinical refractometer used triple-scale design to measure the specific of cat's and dog's Urine, and the concentration of serum protein or plasma protein. 【Good Practicality】This clinical pet refractometer is easy to use, sturdy design, compact in size and light in weight, convenient to keep up and carry around. Bring you a comfortable and convenient use experience. 【Convenient to Use】RZ126 refractometer with built-in ATC (Automatic Temperature Compensation) from 10~30 degree Celsius. Adjustable manual focusing. Accurate testing results guaranteed. 【Practical Accessories】Urine specific refractometer adopts soft rubber eyepiece for comfortable viewing. Equipped with scale measurement which provides direct reading. 【Premium Material】3 in 1 scale clinical refractometer used ambient light only which means battery or power source is not required. Made of premium material, durable in use.