Can the sensor cone be narrowed some by placing it inside a short section of tube?

I have had great success narrowing the cone by placing the sensor in a plastic horn like a vuvuzela, which can be found cheaply. I cut off enough of the narrow end of the plastic horn, until the sensor fit snugly. The abrupt end of a narrow tube may create an echo of its own (due to impedance mismatch), and furthemore sound may bend around sharp edges. Horns are made to mitigate these effects.

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2Pcs JSN-SR04T Integrated Ultrasonic Distance Measuring Sensor Transducer Module Waterproof

Product ID: 281748813

Details

Brand
ATNSINC
Item Weight
0.08 kg
Min. Operating Voltage
3
Power Source
Battery
Style
Compact

⚡Low power 30mA max

💧Waterproof stripline probe

📏25cm-4m range

740688₫

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Sold byAmazon VietnamDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

📡 Measure Smarter, Not Harder — Stay Ahead with Ultrasonic Precision!

PLUG PLAY INTEGRATION - Compact module with simple IO trigger and echo pins, compatible with popular microcontrollers like ESP and Raspberry Pi.
RUGGED WATERPROOF DESIGN - Sealed stripline probe ensures durability in wet and harsh environments—perfect for outdoor and industrial use.
ENERGY EFFICIENT OPERATION - Operates on low voltage (3-5.5V) with minimal current draw (5mA static, 30mA working) to extend device runtime.
PRECISION DISTANCE SENSING - Accurately measures from 25cm up to 4 meters with 0.5cm resolution for reliable spatial awareness.
VERSATILE APPLICATION READY - Ideal for smart home automation, obstacle avoidance, water level monitoring, and AI research projects.

The JSN-SR04T is a compact, waterproof ultrasonic distance sensor module delivering precise measurements from 25cm to 4 meters. Featuring a sealed stripline probe and low power consumption, it excels in wet or harsh conditions without sacrificing accuracy. Perfect for professional-grade applications like industrial control, smart automation, and AI research, this module offers easy integration with microcontrollers for real-time, reliable distance sensing.

Specifications

ASIN	B08T5XF6Y9
Best Sellers Rank	#243,143 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #36 in Ultrasonic Proximity Sensors
Brand Name	ATNSINC
Customer Reviews	4.2 4.2 out of 5 stars (32)
Item Weight	0.08 kg
Manufacturer	Atnsinc
Measurement Type	distance
Minimum Operating Voltage	3 volts_of_direct_current
Model	19117
Number of Items	2
Part Number	19117
Power Source	Battery Powered
Style Name	Compact
UPC	701715459977
Unit Count	2 Count

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