Shandong Fengtu IOT Technology Co., Ltd
Sales Manager:Ms. Emily Wang
Cel,Whatsapp,Wechat:+86 15898932201
Email:info@fengtutec.com
Add:No. 155 Optoelectronic Industry Accelerator, Gaoxin District, Weifang, Shandong, China

Sales Manager:Ms. Emily Wang
Cel,Whatsapp,Wechat:+86 15898932201
Email:info@fengtutec.com
Add:No. 155 Optoelectronic Industry Accelerator, Gaoxin District, Weifang, Shandong, China
time:2022-04-24 14:49:14 source:Weather Station viewed:1163 time

what are negative ions are molecules floating in the air or atmosphere, gas molecules or atoms with one or more electrons, usually in a negatively charged state....
weather instruments and its uses are thermometers, barometers, rain gauges, wind vanes, anemometers, and hygrometers that measure temperature, pressure, rainfall, wind direction, wind speed, and humidity, respectively....
Pore water pressure gauges are indispensable and important instruments in the field of geotechnical engineering, mainly used for accurately measuring the pore water pressure in soil or rock masses.Its working principle is based on the pressure - sensing mechanism. When the pore water in the soil or...
Medical cold storage houses large quantities of pharmaceuticals, which often need to be kept within a specific temperature range to maintain their quality and activity. Because changes in temperature may affect the chemical properties and potency of pharmaceuticals, temperature observations are need...