Waterproof type ultrasonic sensors are widely used in parking sensors, proximity sensors，level sensors, etc. With excellent sealability, this sensor is waterproof and dust-proof, which allows it to work under relatively harsh environment. Enclosed type sensor is gas-intemeidiary, it features advantages of ultra-small, ultra-lights and low powerconsumption. (It cannot be used underwater)
Frequency : 55 kHz
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