can the receivers be used as transmiters? I only need transmitters.

No, the receivers are marked with R and transmitters with T. You could experiment and see. If you don't want to experiment, assume they are not the same and you must use R for receiver and T for a transmitter.

Do these do their own tone generation/demodulation? Or are they effectively high-frequency speakers/mics and an external circuit does the processing?

They are effectively a high frequency speaker/mic

Can you use this to measure flow rate in a pressurized water pipe? How about gas?

Most likely for water. For gas, it would depend on the gas density, and the sensitivity of your circuit. I was able to get some pretty precise nodes in my setup for other things, so provided you know the math needed to calibrate the system, it should get job done. Are you trying to measure the speed using flight time or doppler?

Hiletgo One Pair 16mm Ultrasonic Sensor Probe Split Ultrasonic Transceiver

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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16079 Ft

Duties & taxes included

In stock

Sold byAmazon HungaryDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Desertcart purchases this item on your behalf and handles shipping, customs, and support to Hungary.

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Description

🚀 Elevate your sensing game with HiLetgo’s ultrasonic precision!

DUAL ROLE DESIGN - Distinct transmitter (T) and receiver (R) units optimize your ultrasonic sensing setup with clear functional roles.
PINPOINT 40 K HZ FREQUENCY - Engineered for ultra-precise ultrasonic detection at 40KHz, ensuring reliable signal clarity.
PLUG AND PLAY VERSATILITY - No batteries required—integrate effortlessly into your DIY projects or professional sensor arrays.
HIGH IMPACT SOUND EMISSION - Delivers powerful ≥110dB sound pressure at 10V for superior transmission range and accuracy.
SENSITIVE RECEIVER PERFORMANCE - Receiver sensitivity of ≥-75dB captures even the faintest ultrasonic signals with ease.

The HiLetgo 16MM Ultrasonic Sensor Probe set features a 40KHz nominal frequency with high emission sound pressure (≥110dB) and sensitive receiver capability (≥-75dB). Designed as split transceiver pairs (transmitter and receiver), these probes require no batteries and are ideal for precise ultrasonic detection in DIY and professional applications.

Specifications

ASIN	B00M2GHG66
Batteries Required?	No
Batteries included?	No
Customer Reviews	4.6 4.6 out of 5 stars (73)
Date First Available	26 Dec. 2022
Guaranteed software updates until	unknown
Item Package Quantity	1
Item Weight	18 g
Item model number	3-01-0622
Manufacturer	HiLetgo
Package Dimensions	9.6 x 7.8 x 3.2 cm; 18 g
Part number	3-01-0622

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16079 Ft

Duties & taxes included

In stock

Sold byAmazon HungaryDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Hungary.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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HiLetgo One Pair 16MM Ultrasonic Sensor Probe Split Ultrasonic Transceiver+Receiver

Description

Specifications

Common Questions