This is an unused guided wave radar level transmitter made by Rosemount, part number 3301HA1S1V4AE0910AAE5. There are a few light scuffs due to long term storage, these can be seen in the pictures.

• Measures liquid and semi-liquid levels or liquid/liquid interfaces
• Input power: 11 to 42 VDC
• Output: 4 to 20 mA
• Probe:
• Length: 9' 10"
• Rigid
• Dia: 0.3"
• Flange: 2" ANSI 150#, 316 SS
• Housing: Polyurethane coated aluminum
• Cable port: 1/2" NPT
• Operating pressure and temp: -15 psig (-1bar) to +580 psig (+40 bar) @ 302 °F (150 °C)
• Process connection and probe: 316 SS
• O-ring: Viton
• Certified FM explosion proof