The PAL-10S is a digital hand-held compact refractometer to measure urine S.G. To operate it, simply place a drop of urine on the prism top and press the “Start”key. Then, the urine S.G. value will be displayed on the LCD instantly.
Patent for Invention Registration No. ZL200310103015.2 (China)
Patent for Design Registration No. ZL03303431.1 (China), 089244 (Taiwan)
Patent Granted in countries around the world.
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https://www.atago.net/product/?l=en&f=products-pal-top.php#ADT58747