Top Ultrasonic Level Sensor Reviews

HiLetgo Analog Current Meter Sensor Module AC 0~5A Ammeter Sensor Board Based on TA12-100 for Arduino

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..
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 width of a TTL pulse,hc-sr04 test distance following formula -- L = 1/2 × T × C ( L is the distance, T is the time between the emission and reception, and C is the sonic speed ).
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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SunFounder Ultrasonic Module HC-SR04 Distance Sensor Compatible with Arduino R3 Mega2560 Duemilanove Nano Robot Rapsberry Pi 4B 3B+, 3B, 2 Model B & 1 Model B+

Ultrasonic hc-sr04 distance measuring transducer sensor, it consists of ultrasonic transmitter, receiver, and control circuit..
HC-SR04 Ultrasonic Sensor Distance 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..
Hc-sr04 Test Distance following formula: L = 1/2 × T × C ( L is the distance, T is the time between the emission and reception, and C is the sonic speed).
Package Content: 5 HC-SR04 Ultrasonic Sensors , 10 Female-Male Dupont Cables , 10 Female-Female Dupont Cables , 1 Exquisite package box.

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5pcs Ultrasonic Module HC-SR04 MELIFE Distance Sensor with 3pcs Mounting Bracket 2 Wire Set for Mega R3 MEGA Mega2560 Duemilanove Nano Robot XBee ZigBee

Parameter -- New Version Power Supply: 3.3V -- 5V DC.
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..
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 width of a TTL pulse, HC-SR04 test distance following formula -- L = 1/2 x T x C (L is the distance, T is the time between the emission and reception, and C is the sonic speed)..
Package Include: 5 x New Version HC-SR04 Ultrasonic Sensors, 3 x Mounting Bracket with Screws, 10 x Female-Male Dupont Cables, 10 x Female-Female Dupont Cables..

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ACEIRMC HC-SR04 Ultrasonic Sensor Distance Module for Nano Robot XBee ZigBee by ElecRight（5pcs

HC-SR04 Ultrasonic Sensor Distance Module: using IO trigger for at least 10us high level signal.
This module has stable performance and accurate measurement distance..
Detection distance: 0.78~196 in/ (2cm~500cm).
This module is fully Compatible with GH-311 anti-theft module..
HC-SR04 Ultrasonic Sensor Distance Module for Nano Robot XBee ZigBee by ElecRight.

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2pcs Ultrasonic Module HC-SR04 Distance Sensor with 2pcs Mounting Bracket for Arduino Uno R3 Mega 2560 Nano Raspberry Pi 3 Smart Robotics Projects

HC-SR04 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..
Resolution:0.3 cm,Module precision:blind spots (2cm)-SUPER CLOSE..
The module performance is stable,measure distance accurately.SRF05,SRF02 ultrasonic ranging module comparable.This module is compatible with GH-311 anti-theft module..

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GORNORVA Aluminum Mist Maker Mini Fog Maker, 12 LED Mister Maker UL Certificated Fog Machine Atomizer Air Humidifier for Water Fountain Pond Rockery Vase Birdbath Hallween Decor

❤SAFE TO USE WITH AUTOMATIC POWER-OFF: SAFETY ALWAYS COMES FIRST. With passed the UL certification, this ultrasonic mist maker is no any safety issues for you to use. 24V output voltage safe design make this pond mister no potential dangers as well. Equipped with intelligent sensor, the power would be automatically turned off once the water level is below 1.38 inch. Create dense mist for your small pond or water tank in seconds with this ultrasonic mist maker fogger!.
❤WATERPROOF DESIGN MIST MAKER: Waterproof design ultrasonic fogger, you don't need to worry about it would break down due to soaking in the water for a long time. Equipped with 94.48in(2.4m) long adapter cable, it's completely long enough for creating mist for indoor or outdoor fountains, aquarium, water feature or office room use. In order to ensure the life circle of this atomizing slice, we highly recommend that this mist ultrasonic fogger can not working continuously over 10 hours..
❤BEST FESTIVE ATMOSPHERE MAKER: This plant humidity fogger can produce a large amount of mist in an hour like aerosolized amount ≥ 300ml/H and water splash about 3.15inch in height. No any heat or chemicals used. With 12 LED corlorful light, color and patter change automatically. Ideal for creating....

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Mopeka Pro Check Sensor - Wireless Propane Tank Magnetic Sensor Level Indicator - Propane Gas Tank Pressure Gauge Electronic for BBQ Grill - Remote Ready Propane, Butane And Fuel Level Gauge With App

..., providing you with real-time updates on the propane level..
EASY TO INSTALL - Our propane tank gauge for grill effortlessly attaches to the underside of your propane tank through powerful magnets. It can be secured in place to the tank level in seconds with enhanced ultrasonic capabilities. Even when traveling on uneven terrain, the sturdy magnets prevent our monitor sensor from detaching from your RV's propane tanks. This gas gauge for propane tank is designed to accommodate all standard and custom LPG tank sizes up to 120 gallons or 420 lbs..
IMPROVED BATTERY - This propane tank fuel gauge is convenient for monitoring your propane levels without physically checking the tank. With the latest improvements in battery technology, propane tank gauge level indicator now has a longer-lasting battery, ensuring it remains operational for extended periods without needing to be recharged or replaced..
LATEST MODEL - Mopeka's latest patented ultrasonic sensor, the Pro Check, boasts enhanced reading quality and precision. This propane grill gauge features an integrated temperature sensor, tank "bubble level,"....

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2PCS TCS34725 RGB Color Sensor Module with IR Filter and White LED I2C Interface

Ultrasonic hc-sr04 distance measuring transducer sensor includes an ultrasonic transmitter, a receiver and a control circuit..
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..
The distance between the unit and the object is calculated by measuring the traveling time of sound and output it as the width of a TTL pulse..
Ranging distance: 2cm~450cm: High precision: up to 0.3cm.
Input trigger pulse：10us TTL Level Working voltage：5V(DC).
Package Content: 5pcs HC-SR04 with a gift of 10 pcs female to male dupont cable.

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HiLetgo 5pcs HC-SR04 Ultrasonic Module Distance Sensor

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.
Equipped with anti-reverse pin socket – making the wiring much tighter and convenient.
Uses the MCU STC15W104 which has a built-in clock, no need of external crystal oscillator..

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Hailege 5pcs HY-SRF05 Ultrasonic Sensor Module DC 5V HY-SRF05 Distance Measure Sensor for Arduino Raspberry Pi

Output signal: Electric frequency signal, high level 5V, low level 0V. Sensor angle: Not more than 15 degrees..

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Ultrasonic Animal Repeller, Solar Powered Cat Repellent, Sonic Animal Deterrent with PIR Motion Sensor, Waterproof Battery Operated Scarer for Gardens Yard Field Farm (A)

【Powerful Ultrasonic and Alarm】Infrared PIR motion sensor can detect the animals, when it detects that the moving animal is in the detection range, it automatically emits the frequency of the sound, flashing LED glare and causes the animals. The solar powered animal repeller frightens intruding animals, motion sensor will emit ultrasonic waves and LED lighting makes the animal feel uncomfortable and run away, and pests to leave the area Without harm humans..
【Adjustable Sensitivity and Frequency】The solar repeller has a high acoustic emission level with an acoustic coverage of up to 8M. The infrared sensor has a angle of 110 degree. You can adjust the item sensitivity and frequency according to different environments to increase the range of protection. The siren is very useful for driving animals. Since it's an ultrasonic sensor, you can hear a little bit of sound. It's harmless to humans and animals, but we recommend keeping it outside..
【Solar & USB Powered】 Ultrasonic cat repellent is equipped with a solar panel on its top, solar panels will automatically absorb sunlight to charge the device, no need to artificially charge under normal weather. If you are experiencing long-term rainy weather, you will need to use an adapter to charge yo....

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Liquid Level Sensor，Wireless Ultrasonic Tank Liquid Depth Level Meter Ultrasonic Level Gauge Water Tank Level Gauge with Temperature Display

【PRODUCT PARAMETERS】 Indoor Temperature Range: 0~60℃.
Transmission Range: 100 meters(300 feet)in open area..
【DETECTION FUNCTION】The ultrasonic level gauge transmits wirelessly within 100 meters of an open area. It can detect the height of the page in the tank, the temperature in the relevant area, the over-limit alarm in the tank, and record the minimum/maximum value of the tank body level..
【HIGHLY ACCURATE】High stability, high sensitivity non contact liquid level sensor , strong anti-interference ability, free from external electromagnetic interference, special treatment for power frequency interference and common mode interference, to be compatible with 5V power adapters on the market..
【INSTALLATION LOCATION】You can hang the receiver unit on a wall or pull out the stand and place it on your kitchen bench top, table or desk. View your room's temperature, tank temperature and water level.When the sensor is installed, keep at least 0.5m away from the water surface! Suitable for all non-corrosive liquid..

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Pure Guardian H3200WAR Ultrasonic Cool Mist Humidifier

COOL MIST HUMIDIFIER: The PureGuardian H3200WAR ultrasonic cool mist humidifier guards against dry air in the home, perfect for those with colds, allergies and dry skin. The easy fill 1.5 gallon tank covers 440 sq. ft. rooms and runs up to 100 hours.
SILVER CLEAN PROTECTED TANK: Silver Clean Protection fights the growth of slimy mold and mildew on the surface of the water tank-a common problem with traditional humidifiers.
ULTRASONIC TECHNOLOGY: The H3200WAR disperses a soothing, cool mist into the air and is ultra-quiet, making it ideal to have on while you sleep. A smart mist sensor monitors the level of humidity in the room and adjusts to your selected level.
AROMATHERAPY TRAY: Aromatherapy essential oil tray helps create a relaxing environment. Oils are not included. Create a better home environment and optimize your comfort with an ultra-quiet, soothing cool mist. 1 essential oil pad included.
ADDITIONAL FEATURES: Easy to use variable 3-speed mist control, on/off night light, timer, multi-directional mist, low water indicator light that illuminates when it's time to refill the tank, automatic shut-off when tank is empty.

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