Echotel® 940/941 series are compact and low cost ultrasonic switches which work work on the basis of ultrasonic detection of contact sensor with medium.
Switches have one sensitive tip at the end of the probe made of 316 stainless steel. The compact electronics are completely encapsulated just above the process fitting.
Switches are available in two versions: Echotel® 940 with SPDT relay output and Echotel® 941 with current shift output 8/16 mA.
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