Calex has designed a temperature monitoring and alarming system for a leading flour milling company to help prevent fires and explosions. Grain passes through rollers that grind it into flour. The roller separation is finely adjusted; if they are too close together, excessive heat is generated by friction, which can cause the roller temperature to become critically high. The flour dust can then ignite, causing a fire or a devastating explosion. As well as the safety risk, this can lead to costly downtime.