Our company is located in Shenzhen in Guangdong provience of China.Our products are mainly about USB thermometer, USB hygrometer,USB thermograph,ect. And these device can test temperature exactly and save the data to the computer automately. The thermograph can work off-line. And the measuring range is from -40°C to 1000°C. Our products can be widely used in sterage, chemical lab, weather and environment or special environment temperature testing.