The Ultrasonic Level Transmitter consists of an ultrasonic level transmitter with output signals controlled using 4-20 mA inputs and two switches. Its optimum range is 64 mm - 2 m (2.5 - 80 in), its maximum range is 3 m (10 feet). It has a digital resolution of 0.086 mm (0.0034 in) and an analog resolution of 4099 steps over the 4-20 mA signal. The Ultrasonic Level Transmitter has a repeatability greater than ±0.76 mm (0.03 in) or 0.1% of the target distance. Its operating temperature is -40 to 70°C (-40 to 158°F) and it is temperature compensated. The update rate of the Ultrasonic Level Transmitter is 50 ms.