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Best Ultrasonic Distance Meter

Canon EF 24-70mm f/2.8L II USM Standard Zoom Lens

  • 24 70 millimetre focal length, 38.4 112 millimetre equivalent focal length on Canon APS C cameras.
  • F22 minimum, ring type ultrasonic type AF motor with full time manual focusing.
  • 82 millimetre filters, closest focusing distance: 0.38 meter/1.25 feet.
  • Image Stabilization : No. Focus adjustment: Inner focusing with USM. Diagonal angle of view: 84° - 34°. Weight 1.7 pound.
  • Purchase this product between May 1, 2016 and July 30, 2016 and get 13 months of free damage protection from Canon. The product must be registered....
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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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Ultrasonic Audio Recording Blocker | White Noise Generator | Powerful Microphone Suppressor Device | Prevent Voice Recording | BDA-3 (FCC, CE & ICES Compliant)

  • ULTRASONIC EXPOSURE + VOICE IMITATION = 100% microphone jamming.
  • HIGH SUPPRESSION POWER AND ACTION RANGE. This microphone blocker emits a very powerful ultrasonic signal (not less than 120 dB) which suppresses microphones at a maximum distance of 7 m (23 ft). The distance is shortened to 2 m (7 ft) for newest iPhone models with an improved noise cancelling system..
  • SOPHISTICATED ULTRASONIC PATTERN that is effective against newest noise-canceling and water-resistant phones. Range and effectiveness can be increased when used with one or more external ultrasonic speakers (sold separately)..
  • 7 ULTRASONIC TRANSDUCERS that ensure protection in front and across the device. Use it as a "virtual wall" to protect yourself from recording devices..
  • CAN BE USED ABSOLUTELY SILENTLY but best results achieved when ultrasonic and white noise interferences are combined..
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Excelity 3pcs Ultrasonic Module HC-SR04 Distance Sensor with 3pcs Mounting Bracket

  • [PACKAGE INCLUDED] 3pcs HC-SR04 distance measurement module & 3pcs mounting bracket for installation.
  • [FEATURE] These module is for distance measuring transducer that working with ultrasonic, they consist of ultrasonic transmitter, receiver, and....
  • [FUNCTIONAL PARAMETER] Effectual Angle: .
  • Resolution : 0.3 cm. Power Supply : 5V DC.
  • [UNIVERSAL COMPATIBILITY] Built in standard interface that can be controlled directly by microcontroller，such as 8051, AVR.
  • [WORKING PRINCIPLE] Using IO trigger for at least 10us high level signal, when triggered it sends out a series of 40KHz ultrasonic pulses and receives....
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Canon EF 70-200mm f/2.8L IS III USM Lens for Canon Digital SLR Cameras White - 3044C002

  • Constant f 2.8 Maximum Aperture throughout Entire Zoom Range..
  • Canon’s Air Sphere Coating (ASC) Minimizes Ghosting and Flare..
  • Optical Image Stabilization at up to 3.5 Stops of Shake Correction..
  • Fluorine Coating on Front and Rear Elements to Help Reduce Smears and Fingerprints..
  • Highly Resistant to Dust and Water, and Improved Durability Even in Harsh Conditions. Inner Focusing System with Ring Ultrasonic Motor. Full-time Manual Focus. One Fluorite Element and Five UD Elements for High Image Quality. Minimum Focusing Distance of 3.9 feet, 1.2 meter. Diagonal Angle of View: 34° - 12°.
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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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ALMOCN 6PCS HC-SR04 Ultrasonic Sensor Distance Module Measuring Ranging Sensor for Arduino

  • Ultrasonic hc-sr04 distance measuring transducer sensor, it consists of ultrasonic transmitter, receiver, and control circuit..
  • 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).
  • Mode of connection:4 pins VCC, Trig (control side), echo (receiver), out (empty),GND.
  • Application:for Robot obstacle avoidance, object distance measuring, liquid level detection, public security, parking lot detection..
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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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Coast Polysteel 200 320 Lumen Pure Beam Focusing LED Flashlight with Twist Focus and Stainless Steel Core, Black, 320 Lumens

  • Poly casing, stainless steel core, IPX8 waterproof, 3 meter drop tested.
  • On High: 250 lumen light output, 3 hour 30 minute runtime, 121 meter (396 ft.) beam distance.
  • On Medium: 87 lumen light output, 9 hour runtime, 68 meter (223 ft.) beam distance.
  • On Low: 26 lumen light output, 35 hour runtime, 37 meter (121 ft.) beam distance.
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Silent Ultrasonic Anti-Spy Audio Recording Blocker | Covert Powerful Microphone Suppressor Device | Compact White Noise Generator | Secretly Stops Hidden Voice Recordings

  • MAXIMUM PROTECTION FROM ALL SOUND RECORDING DEVICES USING 7 ULTRASONIC TRANSDUCERS that ensure protection in front and across the device. Use it as a “Virtual Wall” to protect yourself from All Recording Devices..
  • HIGH SUPPRESSION POWER AND ACTION RANGE. This microphone blocker emits a very powerful ultrasonic signal (not less than 120 dB) which suppresses microphones at a maximum distance of 7m (23 ft). The distance is shortened to 2 m (7 ft) for newest iPhone models with an improved noise cancelling system..
  • SOPHISTICATED ULTRASONIC PATTERN that is effective against newest noise-canceling and water-resistant phones. Range and effectiveness can be increased when used with one or more external ultrasonic speakers (sold separately)..
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ELEGOO 5PCS HC-SR04 Ultrasonic Module Distance Sensor Compatible with Arduino UNO MEGA Nano Robot XBee ZigBee

  • Ultrasonic hc-sr04 distance measuring transducer sensor.
  • 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..
  • Package Content: 5pcs HC-SR04 with a little gift.
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Magpie VH-80, Bilateral Laser Distance Meter + 2 Professional Magnetic Laser Target Plates

  • MEASURE DISTANCES FAST AND EFFORTLESSLY: Do you want to measure long distances, but there’s no one around to help you? The world’s first bilateral laser measurer is the tool you need to get the job done conveniently. This unique measuring device can measure any distance up to 262ft (80m) safely and conveniently without having to strain your body or use dangerous positions. Every professional construction worker and DIY'er needs this smart gadget..
  • Essential tool for Laser Distance Meter and Laser Level products. Best target plate for laser distance meter, laser level, laser measure, cross line lasers, alignment, rotary lasers, and all green and red beam laser level products (compatible with green and red lasers)..
  • Buy one and get one free! Two target plates per package. Especially for the VH-80 Magpie Bilateral Laser Distance Meter..
  • Magnet strip & Stand. Use it as a guide for measuring distances with a laser distance meter in situations where there is no reflective surface. Use the built-in stand or magnetic strip feature to position it. Scale displays both inches and centimeters..
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VEVOR Ultrasonic Cleaner 58L-130L Lab Industrial Ultrasonic Cleaners Ultrasonic Parts Cleaner with Heater Timer Professional Cleaning Machine for Industrial Business Using (27 L)

  • Premium Quality: Large ultrasonic cleaner, water tank capacity: 77L.
  • Frequency: 40KHz. The cleaning tank is made of industrial-grade stainless steel..
  • Cleaning Ability: The ultrasonic vibration processing method is used. The built-in powerful transducer can enhance Ultrasonic power. The cleaning frequency of 40KHz can remove the stains on the items in a few seconds, improve the cleaning efficiency, and do not damage the items..
  • Heating Function: The heating temperature of this digital ultrasonic cleaner: 0-80 ℃(adjustable). Heating can reduce the adhesion strength of oil and wax to specific materials to be cleaned, thereby improving the cleaning effect..
  • Digital Control Panel: Digital timer and temperature display for precise washing time and temperature control. The knob power can be adjusted. The Ultrasonic Power is adjusted for correct cleaning to prevent excessive force from damaging the surface of precision parts..
  • User-Friendly Design: This professional ultrasonic cleaner is designed for better use: with a valve and 1-meter long pipe for water discharge. There are also stainless steel cleaning baskets, heat dissipation design, mobile casters, and stainless steel lids..
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