Top Wireless Ultrasonic Water Level Sensor

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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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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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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MySpool Water Level Alert with Text Message and Email Notifications, Battery Powered with a Float Sensor

  • Email and text message notification when water level change is detected. All services are free..
  • Battery powered wireless water level detector using your WiFi, no app to install and no hub is required. Perfect as a standalone high or low water alarm..
  • Waterproof float sensor with a 3 ft wire connected to a rugged enclosure protecting smart electronics. This float sensor can be used to detect high or low water levels, the default setting detects high water levels. Flip the float ring and use this device to detect low water levels in aquariums, ponds, and storage tanks..
  • Alert is sent if the float rises to signal high water level. Flip the float ring to send alert when water level falls. 3 AAA batteries, included, last for years with limited activity..
  • Rugged enclosure supports up to 250 lbs, designed to operate in dusty and moldy environments. Avoid costly repairs by keeping MySpool Water Detector anywhere that has the potential for flooding or developing a leak..
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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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creatorele DC 12V 24V 32V Automatic Boat Bilge Float Switch Bilge Switches Flow Sensor for Automatic Electric Water Pump

  • 【Bilge Float Switch】:Can be connected to various submersible pumps, bilge pumps,and water pumps .Shells made of high quality ABS material, the internal metal contacts to ensure reliable start / stop..
  • 【Use with pumps】:Turn pump on when water level reaches 2″(51mm).
  • Turn pump off when water level reaches 3/4″(19mm)..
  • 【Performance】:Long life, switching frequency up to 10 million times.
  • Ultrasonic welding, forming a seal, reliable and secure, not leaking..
  • 【Specification】:Max Amps 12volts: 20A / Max Amps 24volts: 10A / Max Amps 32volts: 8A.
  • 【Easy to Clean】:Ideal flow sensor for bilge pumps Latest design includes a removable base for easy cleaning and servicing..
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Blast Motion Replacement Wireless Sensor Charger | for use Golf, Baseball & Softball Sensors (900-00052)

  • COMPATIBILITY: This replacement charger is compatible with all Blast Motion Sensors (Not Included)..
  • HOW TO USE: To start the charging process connect the black Wireless Charger and the cable connection. Once the cable is connected to the Wireless Charger and the blast logo is facing up, the charging process can begin..
  • EASY TO USE: When the sensor is placed on the charger an audio tone will sound. There are 3 indicator lights on the charger:.
  • LED LIGHT INDICATORS: Red LED – The charger is not active (the sensor is not on charger or the sensor is fully charged). Blue LED – The sensor is charging. Green LED – The sensor is completely charged..
  • CHARGING TIME: A full charge takes 60 min. Once the sensor is charged you can see the battery level on the top right of the app. When the sensor is showing less than 20% battery level or the sensor LED starts to blink red, a charge is needed.
  • PACKAGE CONTAINS: Wireless Charger, 1m Micro USB Cable..
  • Included components: wireless charger, micro USB charging cable.
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Sump Alarm Wifi Water Sensor, Wireless Sump Pump Alarm with 10 Float Switch for Indoor Outdoor Use, Weatherproof Water Detector Alarm with Free Email Alert, Audible Alarm and Server-Side Backup

  • MONITOR WATER LEVELS from anywhere with a wireless water detector and septic alarm by Sump Alarm. Our flood sensor lets you know when water levels approach a dangerous stage..
  • INNOVATIVE WATER ALARM is the first outdoor wifi water leak detector. IP67-rated with gasketed enclosure and weatherproof components, Sump Alarm Water Alarm is ideal for lift stations, grinder pumps and pool sumps..
  • POLYPROPYLENE FLOAT SWITCH on our water sensor alarm detects changes within 6” for fast troubleshooting. Minimize property damage with quick notification from our water level sensor..
  • FREE EMAIL ALERTS from Sump Alarm Smart Water Sensor keep you informed from anywhere in the world. An optional monthly/yearly subscription service sends text and/or voice notices for the liquid level alarm..
  • Server-side backup of the water alarm detector alerts you to loss of power or internet. An LED light and a 90 db horn deliver visual and audible alerts from the moisture sensor..
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Wireless Parking Sensor Kit Reverse Radar System with 4 Car Backup Sensor Wireless LED Distance Display with Sound Warning + 4 Blue Car Reverse Sensor for Auto Vans RV Trailer

  • [High Quality Wireless Parking Radar] This parking radar system is equipped with a high-precision and highly agile ultrasonic sensor*4, a central....
  • [New Technology Upgrade] Support the wireless connection of the center control box and the LED display, free from the trouble of wiring clutter.Don't....
  • [Easy to Install] The wireless parking sensor kit saves you from the hassle of cluttering and affecting aesthetics, you no longer have to worry about....
  • [Reliable Components]4 full weatherproof Parking Sensor, Superior performance+ LED distance display, clear vision and friendly. Don't worry about it....
  • [Quality Warranty] Car Reverse Sensor Kit made of high-quality materials, excellent design ensures durability and excellent use. 24-hour high-quality....
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Car Humidifier Colorful Desktop Humidifiers TRUYOK Portable Mini humiterfier for Room Office Bedroom etc. with Auto Off, 2 Mist Modes, Super Quiet - USB (Pink)

  • ...is built-in water level sensor inside that will automatically turn off the power after 6 hours. The Leak-proof nano design of this portable humidifier ensures the water mist is nano fine mist and keep you away from pouring liquid in accidence, NO NEED TO WORRY about your night table / phone / laptop anymore..
  • ✅ 【ULTRASONIC OPERATION 】 Humidify your living space to prevent dry, stuffy air and flu/cold infecting your loved ones. Prevent dry and chapped skin in dry seasons with no noise. Note: Full refund or replacement for any quality related issue, one year warranty , 7 days , 24 hours online customer service, buy with confidence!.
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