•The devices are easy to operate without any complicated menu system. •The temperature is indicated on a 3-color LCD display. •The relays with two threshold values are suitable for all common types of sensor, such as Pt100, Pt1000, KTY, NTC, thermocouple. •The family of 3RS temperature monitoring relays consists of analog and digital adjustable relays for the connection of between one and three sensors (resistance sensors or thermocouples). •They are available with screw-type or spring-type terminals. •Likewise, versions are available with communication via IO-Link. •Accessories include labels and push-in lugs. •SIRIUS relays - one range for every application.