28. June 2019
Food freshness sensors could replace ‘use-by’ dates
...cost two US cents each to make. Known as ‘paper-based electrical gas sensors’ (PEGS), they dete
...cost two US cents each to make. Known as ‘paper-based electrical gas sensors’ (PEGS), they dete
...tiny sensor that can detect this gas in concentrations as low as 15 parts per billion, which they believe c
...a group of wireless temperature sensors in refrigeration or freezing appliances, temperature and humidity <