120KHz |14° |0.5~30m |used for ultrasonic fish finder sensor,
ultrasonic sensor for non-contact detect objects,
ultrasonic distance sensor in liquid, etc.

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Product Details


This specification includes 120E20TR-C3 ultrasonic sensor size, characteristics, performance parameters and precautions, before using this product, please read this specification. 120E20TR-C3 has the functions of transmitter and receiver. It generally can be used for ultrasonic fish finder sensor, ultrasonic sensor for non-contact detect objects, ultrasonic distance sensor in liquid, etc. If you have any questions for other applications, please contact us for details.


Part Number



High Frequency

Using Method

Receiver and Transmitter (Dual use)

Nominal Frequency


Sending sensitivity


Receiving sensitivity

-191dB min.

Min. Parallel Resistance



1500Pf±20%,including cable



Distance of Detection

0.530m(reflection in liquid)

Operating Temperature


Material of Cover



1, Small size and light-weight

2, High sensitivity and high sound pressure

3, Low power consumption

4, High reliability


1, Please do not apply D.C.voltage for ultrasonic sensors to avoid migration.

2, Because the sensors have potential direction, please pay attention to its installation location.

3, To ensure reliability and long service life, do not use the sensors where temperature is higher than rated.

4, Can not use the sensors in a vacuum zone or hazardous areas.

5, Do not use in a steam zone, this area of the atmosphere produce uneven temperature gradient will lead to measurement error.

6, The products should not be used or stored in a corrosive atmosphere, especially where chloride gas, sulfide gas, acid, alkali, salt or the like are present. Store the products in the room where is normal temperature and humidity, and avoid the sunlight, sudden changes in temperature and humidity. It may cause of failure or malfunction in such conditions.

7, If you will apply to non-standard frequency and other special conditions, please inform us the specific work conditions, the circuit you need, in order to make sensors to meet your specific requirements.


1, No OSENON products should be used or sold for use in the design, utilization, maintenance, operation or contribution to any weapons such as nuclear, chemical or biological weapons or missiles etc.

2, Please contact our sales representatives or product engineers before using the product in this catalog for the applications listed below, which require especially high reliability for the prevention of defects which might directly damage a third party’s life, body or property:

① Aircraft equipment ② Aerospace equipment ③ Undersea equipment ④ Power plant equipment ⑤ Medical equipment ⑥ Transportation equipment(vehicles, trains, ships, etc.) ⑦ Traffic signal equipment ⑧ Disaster prevention/ crime prevention equipment ⑨ Data-processing equipment ⑩ Application of similar complexity and/or reliability requirements to the applications listed above.

3, OSENON technical team constantly improve the technical, we reserve the right to change the appearance or product specifications without notice. Please pay attention to OSENON's website for the latest news.

With professional 120e20tr-c3 factory, OSENON Technology is one of the best High Frequency Ultrasonic Sensor manufacturers and suppliers. Welcome to wholesale products from us.

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