3nh is a large-scale manufacturer of color difference meter in China. Its main products series inclube: TS series grating spectrophotometer, YS series grating spectrophotometer (portable / desktop), NS series handheld spectrophotometer, NH series portable colorimeter, NR series handheld colorimeter; Tilo brand light cabinets has a large R & D, production and sales base, and its production and sales is always in the leader for a long time; Sine Image is one brand of the company to offer image test chart, test software and solutions, including the independent R & D and production high-definition iso12233 resolution test chart and other full series of test chart, standard light sources, test software and test solutions etc. Sine Image has a professional image test laboratory. And 3nh also has many domestic innovative technologies for gloss meter, with high, medium and low gloss automatic switching function. It inclubes large screen economic HG series, large touch screen NHG series with glossy board calibrated function, economic digital YG series.

The company is also the authorized agent of Philips and Sylvania. All products are widely used in plastic electronics, paint and ink, textile and dyeing, printing paper, food, medicine, cosmetics, scientific research, schools, laboratories, optical image testing ,and other fields. The company has gathered a large number of highly talented professionals in the industry, applied for many innovative patents, and has the core technology and intellectual property rights of 3nh, Tilo and Sine image products.