HETERODYNE BAT DETECTOR. This sensitive heterodyne bat detector is ideal for the amateur enthusiast looking to explore the hidden world of bats. This device will allow you to listen to bat ultrasonic sounds while bats are flying and tune in to the different frequencies from the various bat species by way of an adjustable frequency dial from≈20kHz to about ≈120 kHz.
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1-8PCS Ultrasonic Module HC-SR04 Distance Measuring Transducer Sensor for Arduino 3-5.5V Ultrasonic Wave Detector Ranging Module
Aliexpress UK
You can use it to hear fetal heart sound and calculate FHR to achieve pre-monitoring and fetus caring. Probe Prenatal Fetal Doppler Baby Heart Beat Rate Monitor Ultrasonic Detector P3. The normal fetal heart rate r-ange is 120-160bpm.
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1-10pcs Ultrasonic sensor HC-SR04 HCSR04 to world Ultrasonic Wave Detector Ranging Module HCSR04 Distance Sensor For Arduino
Aliexpress UK
Description: Embrace the enchanting journey of pregnancy with our new LittleBeats Baby Heart Rate Monitor Standard! A revolutionary device designed to bring you closer to the magical experience of monitoring your baby's heartbeat. With a host of advanced features tailored to your needs, our Doppler Plus ensures a seamless and unforgettable journey through pregnancy. Featuring adjustable volume and probe, battery-operated convenience, and a user-friendly interface, monitoring your baby's heartbeat has never been easier or more personalized. From its simple operation to its deep functionality, our Fetal Doppler is a must-have for every parent-to-be, offering peace of mind and helping to foster early bonds with your little one.
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TZT Ultrasonic sensor HC-SR04 HCSR04 to world Ultrasonic Wave Detector Ranging Module HC SR04 HCSR04 Distance Sensor For Arduino
Aliexpress UK
The external speaker of the device will be closed, without any sound output. (battery is included ) Note: The normal fetal heart rate r-ange is 120-160bpm. Features: High sensitivity probe, no radiation, low-ultrasound power, safety and with high accuracy.
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TZT Ultrasonic sensor HC-SR04 HCSR04 to world Ultrasonic Wave Detector Ranging Module HC SR04 HCSR04 Distance Sensor For Arduino
Aliexpress UK
Manufactured by Aritech, known for early high-end security solutions. Aritech DU-160 Detector PCB with components. Part of the DU 150 / DU 160 / DU 190 Series – Designed for motion detection and intrusion monitoring via ultrasonic sensing.
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Ultrasonic sensor HC-SR04 HCSR04 to world Ultrasonic Wave Detector Ranging Module HC SR04 HCSR04 Distance Sensor For Arduino
Aliexpress UK
Whadda WSAK8118 Stereo Ultrasonic Sound and Bat Detector Electronic Kit. A self assembly electronic DIY kit which requires soldering. This detector converts imperceptible sounds for humans such as bat signals into audible noise.
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5/10PCS Ultrasonic sensor HC-SR04 HCSR04 to world Ultrasonic Wave Detector Ranging Module HC SR04 Distance Sensor For Arduino
Aliexpress UK
1 set Ultrasonic leak detector. It is very suitable for detecting cracks of pipes, valves, etc. Enough to emit frequencies the detector can pick up. (Only DY26). Nitrogen(N), carbon dioxide(CO2) and steam.
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Ultrasonic Module HC-SR04 3.5-5v Distance Measuring Transducer Sensor for arduino Ultrasonic Wave Detector Ranging Module
Aliexpress UK
You can use it to hear fetal heart sound and calculate FHR to achieve pre-monitoring and fetus caring. Probe Prenatal Fetal Doppler Baby Heart Beat Rate Monitor Ultrasonic Detector P3. The normal fetal heart rate r-ange is 120-160bpm.
eBay
1Pcs FFA 1S 1PIN C9 Connector for Ultrasonic Flaw Detector thickness gauge flaw detector non-destructive testing connector
Aliexpress UK