Reviews Distance Sensor

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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CYCLESPEED Rechargeable Bike Computer Wireless, Waterproof Speedometer Odometer, Digital LCD Backlight Display Bicycle Bicycle Odometer, Cycling Bike Computer Stopwatch for MTB Road Bicycle

  • ...aterproof rating】Designed with waterproof seal ring on the back cover of the wireless bicycle speedometer, the waterproof protection of bike odometer speedometer is strengthened again to offer you the best experience.
  • 【Installation requirements】To install the bicycle odometer, here are the requirements. 1. The distance between sensor and main unit is less than 50cm, main unit can receive signals and work, closer, better. (The computer sometimes would display a fluctuating data for over 50cm distance, it does not effects all data) 2.The distance between magnet and sensor should be about 5 mm, the closer, the better. 3. The magnet faces the back of the sensor’s battery.
  • 【How to measure wheel size】Measure wheel size before you start settings the cycling computer. Set the valve vertically on the surface and mark it. Make one full spin and stop with the valve in the same position as before and mark it to 0. Measure the distance between the two markers and insert the value(mm) in the computer.
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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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Fielect 5pcs MC-31 Surface Mount Wired N.O. Door Contact Sensor Alarm Magnetic Reed Switch White

  • Producat Name: MC-31 Magnetic Door Sensor.
  • [Normally Open] - NO means Normally Open: when the magnet separates, the circuit is conductive( light on ).
  • When the magnet together, the circuit is not conductive ( light off )..
  • [Widely Usedl] - This surface mount wired door contact Sensor works with any access control or burglar alarm system available.
  • [Note] - the Magnetic Door Switch must be installed according to the sensing distance. It can only provide a switch signal to the transmitter. It cannot directly load the power, nor directly connect the lamp!.
  • [Package Included] - 5Pcs x MC-31 Surface Mount Wired Magnetic Door Sensor.
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2Pcs JSN-SR04T Integrated Ultrasonic Distance Measuring Sensor Transducer Module Waterproof

  • Working voltage:DC3-5.5V, Static current:5mA, Total current work: 30mA. Working range: 25cm-4M, Working frequency: 40KHZ, Detecting angle: 75 degree. The JSN-SR04T ultrasonic distance measuring module provides a measurement range of 21cm-600cm. Blind area is 20cm..
  • Integrated with sealed waterproof stripline probe, this sensor suitable for wet and harsh measurement occasions. Please note that the device is waterproof, but it couldn't work underwater..
  • Small size, easy to use, strong anti-jamming, high accuracy, low voltage and low power consumption. The module has a variety of modes that can be modified manually, suitable for testing and teaching experiments in different occasions..
  • Applications:It is widely used in horizontal distance ranging, obstacle avoidance, object distance measurement, car reversing sensors, security alarms, automatic control, security and industrial control, Intelligent traffic control and artificial intelligence teaching and research etc..
  • Package Included:2 x JSN-SR04T Ultrasonic Distance Measuring Transducer Sensor Waterproof.
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Infrared Sensor, Motion Sensor Smart Infrared Sensor PIR Human Motion Detector Intelligent Interconnected 150° Wide Angle for Zigbee 3.0 Motion Detector for Home Security System

  • High Sensitivity --- The detection distance of the infrared sensor is up to 7 meters, and it supports a wide angle of 150 degrees, with high sensitivity and high precision. Long-distance infrared induction, infrared induction can reach 7 meters, the protection is more sensitive and safer..
  • Adjustable base --- The human motion detector is equipped with a 360-degree rotating base, which can easily adjust the detection angle, which is more convenient. It is suitable to be installed on the wall or other objects at any angle, and can be adjusted flexibly to meet the requirements..
  • Application --- Smart sensor can be used in Zigbee 3.0, different levels of home security system, mobile application can check the status anytime and anywhere. Simply install the sensor on the side of the gate entrance or wherever you need to detect passing people..
  • Low power consumption --- The infrared sensor automatically turns off other appliances in the house when it detects that there is no one in the house. Safe and power saving. Made of ABS material, durable and long service life..
  • Easy installation --- The human motion detector is small in size, light in weight, easy to install, no tools required, and can be placed at will. Simple to operate, do whatever you want,....
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Create Your Own Pinhole Camera

  • This is security spy PIR detector camera, 2.4MP High definition resolution mini camera with high sensitive interline transfer 1/2.8" sensor which can....
  • This TVI/CVI/AHD covert camera looks like an alarm sensor, so no one knows it's a surveillance camera and monitors everything once it's installed..
  • 3.7mm Pinhole lens,Wide angle view for easy and convenient installation, IR night vision distance is 33ft.
  • Built in hidden night vision: Adopting 48pcs 940nm Invisible IR LED and IR night vision distance is 33ft, the IR LEDs in these cameras operate at a....
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Otdair 35W Outdoor Security Light, 3500LM Motion Sensor Flood Light ,IP65 Waterproof, Remote Control LED Flood Light Outdoor Motion Sensor for Garage, Yard, Entryways, Patio, 1 Pack

  • ..., you can use the remote control to select the appropriate mode, even in the off state, press any mode key, you can directly enter the corresponding working mode: ① Sensor Mode 3500LM ② Dim to Sensor Mode 800LM/ 3500LM ③ON Mode 1500LM..
  • [PIR Motion Sensor]: The outside security light provides a maximum sensing distance of 72ft. When led security lights senses movement of people, cars or animals, the motion security light will automatically turn on. The motion flood light has a 180° motion detection angle, providing you with a bright environment to the greatest extent..
  • [Adjustable Design]: 3 lamp heads can be rotated, the left and right sides of the lamp head can be rotated 180°, the main flood light head can be adjusted 90°, you can adjust to your most suitable lighting angle, suitable for porch, backyard, front door, garage, Driveways, sidewalks, steps, etc...
  • [Adjustable lighting time and sensing distance]: You can adjust the lighting time of LED Security Lights to save energy, and the lighting time after induction can be set to 30S/60S/120S/TEST. You can also set the sensing distance of the outdoor led flood light to meet your different lighting needs, L: 0-8 meters, M: 0-15 meters, H: 0-21 meters.
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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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