Sell illumination handheld clinical refractometer

Description

ZGR series has its own light source. With the built-in light source, it makes more convenient to use when in a Dark or Dim room or when doing wide-field work. And it also can use the outside light source to test. It is convenient to replace the batteries when they were use out. This models have three scales, scale one is protein in serum, scale two is urine specific gravity, scale three is refractive index. The ZGRC***0ATC has Automatic Temperature Compensation System. Specification: Measuring Range: ***2g/dl 1.****1.**0sg 1.****1.**0RI Minimum Division: 0.2g/dl 0.**5sg 0.***5 RI (ATC) Temperature Compensation Range:*0°C***0°C Power Require: 3 “AAA” Button Cell (1.5V*3) Battery Life: More than **0hours Light Source: White LED Dimension: *7x*0x**0mm