absolutely working with digital signal, perfect intercommunion between machine and manipulator, high precision for measuring and ultrasonic level meter/ ultrasonic liquid level transmittermax measure distance: 12/15mblind area: <0.5mwork frequence: 20KHz~43.0KHz(optional for different model)output signal: 4~20mA(optional for other output signal)max output impedance: 300Ωmin. display resolution: ...