Check the listing for details. Magnetrol Echotel 338-P53A-G5P Ultrasonic Transmitter: Lvl, Vol, OpenChannelFlow. Condition: Used. Listed at 299.99 USD. Echotel® Model 338 Non-Contact Ultrasonic Two-Wire Transmitter for Level, Volume, or Open Channel FlowModel 338-P53A-G5PSupply 12-36VDCOutput 4-20mA Comes with LCD Display for setup and continual process display Power consumption 48 to 720 mW Maximum range 20 feet (6 meters) Dead zone 10 inches (250 mm) Frequency 80 kHz Output signal 4–20 mA isolated Loop resistance 630 Ω @ 24 VDC (20 mA), 570 Ω @ 24 VDC (22 mA) Diagnostic alarm Adjustable 3.6 mA, 22 mA, or HOLD (NAMUR NE 43) Damping Adjustable 0–60 seconds User Interface Keypad 4-button menu-driven data entry Display Removable 6-digit custom LCD module with dual function bar graph LED status indication Echo strength and power Process connection 2 inch NPT or BSP Process temperature -22° to +195° F (-30° to +90° C) Ambient temperature -22° to +140° F (-30° to 60° C) LCD module temperature -13° to + 140° F (-25° to +60° C) Process pressure Atmospheric to 44 psi (3 bar) Ultrasonic beam angle 5 degrees conical Temperature compensation Automatic over the operating temperature range of the transducer Accuracy ±0.2% of the measured distance, plus 0.05% of the range Resolution .04 inches (1 mm) Enclosure Plastic (PBT), NEMA 6 (IP 67) Transducer Polypropylene, NEMA 6P (IP 68) Cable entry Two – 1 ⁄2" NPT and Two – PG16 Weight 1.8 lbs. (.8 kg)