In order to meet the demand of the market,Fuzhou Zhontuo Optoelectronic Co.,Ltd. release a kind of new hand held refractometer with LED lighting.it can normal measure in the dark light. Greatly improved the range of application. This new product maintain the original function.lighting stability,easy operation,safety and environmental protection,long service life.continuous use up to 30 hours,price economic.it’s the best choice。

Products Photo

Model List