Rosemount level ultrasonic transmitter 3105HA1FRCI1 is a reliable and cost-effective solution optimized for level, volume and open channel flow measurement in hazardous areas. It gives a 4–20mA output with HART communication and is equipped with 2 integral relays for local action (eg. activate buzzer/ alarm). Operating Temperature -22 to 158 °F (-30 to 70 °C). It is suitable for storage tanks, effluent pits, and buffer tanks. It features a local operator display with buttons for quick and easy commissioning and fully integrated temperature compensation for automatic speed of sound correction. The automatic false echo detection together with easy setup makes this a device you can trust.