ReviewsUltrasonic Level Meter

COCLPP Sonic Dog Barking Control Device,Ultrasonic Dog Bark Deterrent,Mini Dog Repellent 26 FT Range,Security Anti Barking Device Dogs

►ULTRASONIC BARK CONTROL: Latest upgrade version, Stop excessive, noisy dog barking by emitting an ultrasonic sound to silence the dog.
More effective than old version deterrents and waterproof..
►SAFE AND EFFECTIVE: Contain sensitive microphone isolates, ultrasonic controller for bark with effective distance of 26 feet, and people couldn't hear the sonic (recommended starting mode for indoors is level 1, increase if needed)..
►SUITABLE FOR VARIOUS SIZES: This stop dog barking deterrent uses high-frequency sound that works to reduce excessive bark of dogs within hearing range.
For dogs 6 months and older UP TO 50 FOOT RANGE. Without need of traditional collar is safe for the most varieties of dogs..
►THE SMALLEST STOP BARKING DEVICE: This ultrasonic dog bark deterrent comes with a well-designed mini shape, can be hung on a tree, indoor, outdoor wall or fence post to stop any dogs barking(within range).
Four buttons for operation, including a test button, an off button and 3 level buttons..
►ENERGY SAVING: Operates 9-Volt batteries (not included),average battery life 5-6 months depending on use..

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COCLPP Sonic Dog Barking Control Device,Ultrasonic Dog Bark Deterrent,Mini Dog Repellent 50 FT Range,Security Anti Barking Device Dogs

►ULTRASONIC BARK CONTROL: Latest upgrade version, Stop excessive, noisy dog barking by emitting an ultrasonic sound to silence the dog.
More effective than old version deterrents and waterproof..
►SAFE AND EFFECTIVE: Contain sensitive microphone isolates, ultrasonic controller for bark with effective distance of 50 feet, and people couldn't hear the sonic (recommended starting mode for indoors is level 1, increase if needed)..
►SUITABLE FOR VARIOUS SIZES: This stop dog barking deterrent uses high-frequency sound that works to reduce excessive bark of dogs within hearing range.
For dogs 6 months and older UP TO 50 FOOT RANGE. Without need of traditional collar is safe for the most varieties of dogs..
►THE SMALLEST STOP BARKING DEVICE: This ultrasonic dog bark deterrent comes with a well-designed mini shape, can be hung on a tree, indoor, outdoor wall or fence post to stop any dogs barking(within range).
Four buttons for operation, including a test button, an off button and 3 level buttons..
►ENERGY SAVING: Operates 9-Volt batteries (not included),average battery life 5-6 m....

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Protmex Sound Level Meter, Dual Mode db Meter Decibel Meter Noise Level Meter 30-130dB Measure with Fast/Slow Selection, Backlight, Max and Data Hold Function, A/C Mode PT6708(Batteries Included)

【ACCURATE AND SENSITIVE SOUND METER】The Protmex SPL meter complies with International Committee IEC651 Type 2 and American National Standard ANSI S1.4 Type2. It has a 0.5s response time, can measure noise level, and quickly display accurate measurement results.Measuring Range 30~130dB.
+/-1.5dB Accuracy with 0.1dB Resolution. Frequency ranges from 30Hz to 8KHz..
【MAX/MIN/HOLD FUNCTION DECIBEL METER】The Protmex sound level meter with a data logger can record the current maximum or minimum decibel value.
the decibel reader and recorder can freeze the reading on the display without worrying that the reading is too fast to record..
【DIGITAL LCD DISPLAY & BACKLIGHT FUNCTION 】The Digital Sound Level Meter has a large clear LCD backlight display that can show the measurement clearly. Turn on the backlight to get the reading easily during the night and reduce the damage to the eyes..
【WIDELY APPLICATION SOUND DECIBEL METER】The decibel meter can be used in many environments and is also suitable for noise engineering, product quality control, health prevention, and treatment, etc. This audio noise measurement equipment is an excellent tool to check, monitor or control and test any environmental sound level. Widely applicable to individuals, famili....

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Mini Motion/Daylight Ceiling Sensor-DIM Kit

Combines passive infrared and ultrasonic technology providing the most accurate motion ceiling sensor possible. The ultrasonic sensor can defect fine movements such as typing, and flipping book pages.
The ceiling sensor is designed to be mounted about 8-10 feet off the ground. The implementation of two sensing technologies in each unit helps to avoid false triggering while still accurately sensing motion.
6 different trigger modes that use a combination of both PIR and ultrasonic sensor. Has adjustable time delays via dip switch (5 sec - 30 min).
Multi-level Coverage, up to 1, 600 ft² PIR coverage and up to 1000 ft² ultrasonic coverage.
UL/ CUL Listed. Operating temperature (32 – 131°F).
California Title 20 and 24 compliant. 120/277 VAC, 1/4HP-120VAC.

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2023 Solar Ultrasonic in Repellent Defender Rat, Squirrel, Deer, Raccoon, Skunk, Rabbit, Mole, Dog, Cat, Waterproof with Motion Detector

Repels Burrowing Animals in A Humane Way - Animal Repellent Ultrasonic Outdoor Solar Powered repels unwanted animals by emitting ultrasonic sound and flashing when the PIR sensor detects a motion. It would make an uncomfortable circumstance where the animals are unbearable to stay and move to other places in 2-4 weeks..
Wide Motion-Activated Sensor to Drive Away the Animal Automatically - This ultrasonic cat repellent outdoor is 110degree infrared sensor angle, max detection range is 25- 30feet. The detection distance reduces with smaller animal sizes. Make sure to load enough repellents so as to cover up all the protected area. Note: Birds at ground level may be easily detected, but birds flying are more challenging to detect..
Solar Powered or USB Charged with Rechargeable Batteries - This Solar raccoon repellent deer repellent marten repellent ultrasonic can be charged via solar panel or USB cord (included), it includes 3xAA 800mAH NiMH batteries (included and replaceable), which can last up to 5-7days after fully charged. USB charge method can make sure you get charged during continues raining and cloudy days..

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Decibel Meter Sound Level Reader 30-130dB A Hand-held Sound Noise Meter with Backlight Alarm Digital Noise Meter Decibel Monitoring Tester Calibrated Audio Noise Volume Measuring Instrument

Sound db meter calibrated at factory, noise measurement range from 30 - 130dBA, accuracy: ±1.5dB, resolution: 0.1dB. Disable the automatic off function, sound meter can continuously measure noise value.
Sound meter features backlight alarm, large LCD display, maximum/ minimum noise monitor, data hold function, auto/manual power off, disable the auto off function, sound level meter can continuously measure noise value, battery indication.
Decibel meter is ideal for neighbors noise complaints, job-site and noise pollution monitoring.
Portable sound level meter is light and compact design, easy to carry with you and operate with one-hand.
Noise meter comes with 3 pcs AAA batteries, a wind-proof sponge ball and user manual. The decibel meter has been adjusted properly, it can be used immediately after the battery being installed..

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Songhe HC-SR04 Ultrasonic Sensor Module Distance Measuring Sensor Module for Arduino UNO MEGA2560 Nano 5pcs

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....
Test Distance Formula -- The distance between the unit and the object is calculated by measuring the traveling time of sound and output it as the....
Package Include -- 5 X HC-SR04 Ultrasonic Sensors , 10 X Female-Male Dupont Cables , 10 X Female-Female Dupont Cables , 3 X HC-SR04 Mounting Bracket.

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Decibel Meter, CURCONSA SPL Meter, Portable Sound Level Meter, 30dB to 130dB, LCD Display, can be Used in Homes, Factories and Streets（Blue）

❤【Widely Used】 A decibel meter is an instrument used to measure ambient sound levels. Decibel meter can be used in homes, factories, workshops, schools, residential areas, offices, streets, hotels, hospitals, laboratories, theaters and sound systems, the scope of application is very wide and an indispensable tool in life.
❤【High Precision】 The measuring range of the sound level meter is 30dB to 130dB with fast response speed and stable and reliable performance. Sound level meter is a high-precision noise meter with an accuracy of ± 2.0 dB. Real-time monitoring can give you accurate data on the sound level in the area.
❤【A / C Double-weighting Measurement】 The A-weighting simulates the frequency characteristics of low-intensity human ear noise, which is suitable for the detection of ambient noise. The C-weighting simulates the frequency properties of high-intensity noises of the human ear, which are suitable for the sound pressure analysis of machine motors and machines. More professional measurement methods provide users with a more perfect user experience.
❤【Fast and Slow Response Rate Conversion】 The spl meter has the function of converting the fast and slow response rate. The fast response rate uses a time constant of 125 mil....

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UANAX Sonic Barking Deterrents Control Device,Ultrasonic Dog Bark Deterrent,Mini Sonic Repellent 50 FT Range,Ultrasound Silencer No Bark Training Control Device Security for Dogs

►ULTRASONIC BARK CONTROL:Latest upgrade version, Stop excessive, noisy dog barking by emitting an ultrasonic sound to silence the dog.
More effective than old version deterrents and waterproof..
►SAFE AND EFFICIENT: Contain sensitive microphone isolates, ultrasonic controller for bark with effective distance of 50 feet, and people couldn't hear the sonic (recommended starting mode for indoors is level 1, increase if needed)..
►FOR DIFFERENT SIZES: This mini bark control deterrents uses high-frequency sound that works to reduce excessive bark of dogs within hearing range.
For dogs 6 months and older UP TO 50 FOOT RANGE. Without need of traditional collar is safe for the most varieties of dogs..
►MINI DESIGN: This ultrasonic no barking controller comes with a well-designed mini shape, can be hung on a tree, indoor, outdoor wall or fence post to stop any dogs barking(within range).
Four buttons for operation, including a test button, an off button and 3 level buttons..
►ENERGY SAVING: Operates 9-Volt batteries (not included),average battery life 5-6 months depending on use..

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SpaRoom Cupcake Essential Oil Ultrasonic Diffuser for Aromatherapy - 5 Hours of Continuous Mist - 80 mL Water Capacity

FEATURES: The Cupcake Ultrasonic Diffuser produces a calming, aromatic mist that covers small rooms up to 150 sq. ft. of space and includes 3....
SAFETY AND USAGE: Includes an automatic safety shut off for peace of mind and a 1.5-meter USB cord for easy setup. The ultrasonic diffuser will....
PREMIUM QUALITY: Our premium essential oil diffusers are made from ultra-high grade, safe, and eco-friendly materials and state-of-the-art production....
A GREAT GIFT IDEA: If you need a gift for any occasion, this aromatherapy essential oil diffuser is a thoughtful present, one that everyone can....
AROMATHERAPY PERFECTION: A powerful mister that provides a home spa experience when used with your favorite essential oils..

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UANAX Sonic Barking Deterrents Control Device,Ultrasonic Dog Bark Deterrent,Upgrade Mini Sonic Repellent 50 FT Range,Ultrasound Silencer No Bark Training Control Device Security for Dogs

►ULTRASONIC BARK CONTROL: Latest upgrade version, Stop excessive, noisy dog barking by emitting an ultrasonic sound to silence the dog.
More effective than old version deterrents and waterproof..
►SAFE AND EFFICIENT: Contain sensitive microphone isolates, ultrasonic controller for bark with effective distance of 50 feet, and people couldn't hear the sonic (recommended starting mode for indoors is level 1, increase if needed)..
►FOR DIFFERENT SIZES: This mini bark control deterrents uses high-frequency sound that works to reduce excessive bark of dogs within hearing range.
For dogs 6 months and older UP TO 50 FOOT RANGE. Without need of traditional collar is safe for the most varieties of dogs..
►MINI DESIGN: This ultrasonic no barking controller comes with a well-designed mini shape, can be hung on a tree, indoor, outdoor wall or fence post to stop any dogs barking(within range).
Four buttons for operation, including a test button, an off button and 3 level buttons..
►ENERGY SAVING: Operates 9-Volt batteries (not included),average battery life 5-6 months depending on use..

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