Best Ultrasonic Proximity Sensors in 2026

Ultrasonic hc-sr04 distance measuring transducer sensor

HC-SR04 consists of ultrasonic transmitter, receiver, and control circuit. When trigged it sends out a series of 40KHz ultrasonic pulses and receives echo from an object.

~Power supply: 5V DC; quiescent current: less than 2mA; effectual angle: less than 15°; distance: 2cm500cm; resolution: 0. 3 cm~

[PACKAGE INCLUDED] 3pcs HC-SR04 distance measurement module & 3pcs mounting bracket for installation

[FEATURE] These module is for distance measuring transducer that working with ultrasonic, they consist of ultrasonic transmitter, receiver, and control circui

[FUNCTIONAL PARAMETER] Effectual Angle: <15 degree ; Detection Distance : 2cm~450 cm ; Resolution : 0.3 cm. Power Supply : 5V DC ; Quiescent Current : <2mA ;

Using IO trigger for at least 10us high level signal

The module automatically sends eight 40 kHz and detect whether there is a pulse signal back

If the signal back, through high level ,time of high output IO duration is the time from sending ultrasonic to returning. Test distance = (high level time velocity of sound (340M/S) /2

Nominal frequency (KHz): 40KHz

Emission sound pressure at10V (0dB = 0.02mPa): ≥110dB

Receiver sensitivity at40KHz (0dB = V / ubar): ≥-75dB

The HC-SR04 ultrasonic sensor can send eight 40 kHz and detect whether there is any pulse signal back.If it back, a high level signal will be outputed by IO, and the duration of the signal is the time from sending ultrasonic to returning

HC-SR04 Test Distance : high level time velocity of sound (340M/S) /2

HC-SR04 Power Supply : 5V DC; Quiescent Current : <2mA,; Effectual Angle: <15° ; Detection Distance : 2cm~500 cm; Resolution : 0.3 cm

Ultrasonic Sensor Distance Module:using IO trigger for at least 10us high level signal.

The Module automatically sends eight 40 kHz and detect whether there is a pulse signal back.

If the signal back,through high level,time of high output IO duration is the time from sending ultrasonic to returning.Test distance = (high level time velocity of sound (340M/S)/2.

✅EPLZON HC-SR04 Ultrasonic ranging transducer sensor

✅Test mode: Use IO to trigger high-level signals. (Not less than 10us), the module automatically sends 8 40kHz and detects whether there is a pulse signal return.

✅Detection area: 0.78~196 in/(2cm~500cm); high precision: up to 0.12 inch/(0.3 cm), effective angle: less than 15°; Trigger input pulse width: 10uS

With a waterproof sealed emitter. This sensor is suitable for outdoor applications such as car reversing sensors, security alarms, industrial inspection, etc.

Integrated with wire enclosed waterproof probe, suitable for wet, harsh measurement occasions. Please note that the device is waterproof, but it couldn't work underwater.

Working voltage:DC 5V, Static current:5mA, Total current work: 30mA. Working range: 25cm-4M, Working frequency: 40KHZ, Detecting angle: 70 degree.

Test mode :Using IO trigger for high level signal.( Not less that 10us),The Module sends eight 40 kHz automatically and detect whether there is a pulse signal back.

The detection zone: 0.78~196 in/ (2cm~500cm); High precision: up to 0.12 in/(0.3 cm) Effectual angle: less than 15°.

Power supply: 5V DC; Quiescent current: less than 2mA.

This is an analog output of ultrasonic ranging module, output analog voltage and distance value is proportional.

This is an analog output of ultrasonic ranging module, output analog voltage and distance value is proportional.

Easy to connect with other systems, ensuring stable and reliable work.

Working voltage:DC3-5.5V, Static current:5mA, Total current work: 30mA. Working range: 25cm-4M, Working frequency: 40KHZ, Detecting angle: 75 degree. The JSN-SR04T ultrasonic distance measuring module provides a measurement range of 21cm-600cm. Blind area is 20cm.

Integrated with sealed waterproof stripline probe, this sensor suitable for wet and harsh measurement occasions. Please note that the device is waterproof, but it couldn't work underwater.

Small size, easy to use, strong anti-jamming, high accuracy, low voltage and low power consumption. The module has a variety of modes that can be modified manually, suitable for testing and teaching experiments in different occasions.

Parameter -- New Version Power Supply: 3.3V -- 5V DC; Quiescent Current: <2mA; Effectual Angle: <15 degree; Detection Distance: 2cm -- 450 cm; Resolution: 0.3 cm.

Operating Principle: Ultrasonic HC-SR04 distance measuring transducer sensor, it consists of ultrasonic transmitter, receiver, and control circuit.

HC-SR04 ultrasonic sensor module: Using IO trigger for at least 10us high level signal, when triggered it sends out a series of 40KHz ultrasonic pulses and receives echo from an object, the duration of the signal is the time from sending ultrasonic to returning.

Features -- Analog voltage output can be set in different ranges according to different application scenarios.

Low power consumption -- This is a low-cost but high-quality distance sensor module with low power consumption.

Ranging module -- This is the analog output of the ultrasonic ranging module. The output analog voltage is proportional to the distance value.

Integrated with wire enclosed waterproof probe, suitable for wet, harsh measurement occasions. Please note that the device is waterproof, but it couldn't work underwater.

With a waterproof sealed emitter. This sensor is suitable for outdoor applications such as car reversing sensors, security alarms, industrial inspection, etc.

Working voltage:DC 5V, Static current:5mA, Total current work: 30mA.Working range: 25cm-4M, Working frequency: 40KHZ, Detecting angle: 70 degree.