K640
The K640 thermal cycler combines industry- standard technology from 960 series- but in a more compact package and at a lower price.

Adjustable pressure hot lid, to preventvolatilizing and dewing.
Hot lid with pressure alarm device, toprevent damaging test tube by too much pressure.
Convenient and flexible module replacementmode.
Innovative module wire socket designachieves module replacement without wire.
The unique left-right design for amplication area and operating area makes operator more convenient and safer

Nison Instrument (Shanghai) Co., Ltd. has 32 offices in most of the largest cities in China including Shanghai, Beijing, Guangzhou, Nanjing, Hefei, Jinan, Changsha, Fuzhou, Nanjing, Chengdu, Kunming, Xian, Shengyang, Wuhan, Chongqing , Zhengzhou , Shijiazhuang , Nanchang , Lanzhou, Xinjiang, Shenzhen, Xuzhou, Shantou,Xining, Hangzhou,Tianjing, Wuxi, Heilongjiang, Qindaoto create a wide sales network to cover whole China area, while Shanghai is the administration center in mainland China. There are totally 600 staff (included Hong Kong staff. Nison has distributors for their different products in aournd 70 countries in Asia, Europe, Oceania, Middle East, Arfica and America now, and also its international distribution network is growing rapidly.

Nison Instrument (Shanghai) Limited- the company for export, exhibitions and advertisement on magazine and internet.