The wide variety of sensor types makes the field indicator 312 with two alarms ideal for all kind of temperature applications.  Sensor selections, display and output scalings are easy to do with front keys. 

The two-wire indicator 312 saves installation and cable costs especially where the distances are long, as no separate power supply is needed . Though the output 4-20 mA is available as standard you can connect power supply 12-28 V directly to output terminals, if you do not need output. The 312 takes only 8 mA from 24 VDC power supply, when output is not used.