... :12.6VDC 350mA Output:RS485,4~20mA Ultrasonic Level Meter BS/CS Series Small Blind Precision Ultrasonic Level Sensors---- ... or a M49 × 1.5's gong jack.Ultrasonic Level Meter Main technical characteristics: 1, non-contact measurement, environmental protection, ... , can be carried out in different environments from accurate line calibration, starting and ending point range, the output module, window ...