Reviews Detect Light Changes

BotBrain Robotics Light Sensor with Cables (Pack of 2)

  • Let your robot sense and respond to light with sensors that detect changes from bright room light to total darkness.
  • Use for the photovore challenge, light following robots, or wheel encoders.
  • Each sensor requires one input on BotBrain board.
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DEWALT 20V MAX* XR® BRUSHLESS RECIPROCATING SAW WITH POWER DETECT™ (Tool Only) (DCS368B)

  • POWER DETECT Tool Technology detects high-capacity batteries to maximize tool output.
  • 1-1/8-In stroke length delivers a fast cutting speed.
  • Keyless lever-action blade clamp for quick and easy blade changes.
  • Variable speed trigger with 0-3000 SPM provides blade control and fast cutting speeds.
  • Bright LED light for increased visibility in low light work areas.
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Timing Light 12V Ignition Timing Light Automotive Strong Flash Timing Lights with Sliding Sensor Clip,Long Test Lead, Reverse Polarity Protection, Overload Protection for Car, Motorcycle Petrol Engine

  • 【Powerful Ignition Timing Light】The timing light can intuitively detect the ignition timing scale on the engine flywheel or pulley to make appropriate adjustments.It can detect the automotive knock suppression control system and vacuum advance angle control system, and change the advance angle as the speed changes.Timing light is suitable for automobiles, motorcycles, ATVs, RVs, boats and all two-stroke or four-stroke gasoline engines.It works on 12V ignition systems. Its speed is up to 1000rpm..
  • 【Why You Need Timing Lights】Under the long-term normal wear and tear of the engine, the timing belt and pulley are regularly replaced, and the cylinder pressure drops, so the ignition timing needs to be readjusted to improve engine performance and efficiency. Timing light automotive can be used to record timing changes due to ignition system failure or resetting timing when vehicle components are changed..
  • 【Strong Flash Timing Light with Sliding Sensor Clip&Long Test Lead】The special bulb used in timing light produces a very strong flash so that the timing marks on the engine can be viewed in bright light or even in sunlight, which is very convenient for you to adjust the ignition timing. The spark plug sensor clip is a sliding clip design for....
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Bobrick B-824 Soap Dispenser Liquid No-Touch

  • 【Upgraded Version】1.Resolve the most common clogging issues by equipping a special unblocker tool 2. Fixed the random beeping and light interference issues..
  • 【5-Level Volume Control】Easily adjust 5 levels (dispense time 0.8s/1.3s/1.8s/2.3s/2.8s) with + - button on the back..
  • 【Futuristic & Decorate】Stylish looking with metallic texture, perfectly decorate your bathroom and kitchen..
  • 【Important Reminder】Only work with Foaming Soap. For gel soap please dilute before use..
  • 【Advanced Sensor】Detect your hand within 2.75" and quickly dispense soap in 0.4s. The pump will stop immediately when your hands leave..
  • 【Low Power Consumption】Powered by 3 AAA alkaline batteries(Battery Not Included) could get 5 months in-between changes..
  • 【Extended Warranty】Register your product and get 18-month warranty..
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NIGHTFORCE NX8 2.5-20x50mm F1 Illuminated Moar Reticle Black Matte Hunting Scope

  • ED GLASS – Features a large 50mm ED glass objective lens for excellent clarity, contrast, and resolution, even in low-light situations.
  • LOW-PROFILE ZEROSTOP TECHNOLOGY – It gives you an easy return to your zero point, no matter how many elevation adjustments you’ve made in the field.
  • WIDE ZOOM RANGE – This wide zoom range allows for fast engagements at close range along with the ability to detect, identify and engage targets at long range.
  • FIRST FOCAL PLANE PRECISION – First focal plane technology means consistent reticle values, regardless of the magnification setting.
  • luminated reticles that provide for fast hold-off adjustments and precise ranging calculations.
  • 50MM OBJECTIVE – The 50mm objective is optimized for resolution and light transmission, with a parallax adjustment coming as close as 11 yards.
  • the integrated PTL (Power Throw Lever) makes power changes fast and easy.
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LOHAS LED Night Lights Plug into Wall 2 Pack, Bright Plug in Night Light, Dusk to Dawn Sensor, 3000K Soft White, Small Nightlight Auto-On/Off, for Adults Kids Room, Bedroom, Bathroom, Hallway, Kitchen

  • Auto On/Off: With built-in light sensor, the LOHAS LED night light will detect the light intensity, light up automatically at night, turn off during the day. Just plug in, no need to turn on/off..
  • Soft Brightness: 0.3 watts, 40 lumen, 3000k soft white. Not too bright, not too dim, not dazzling. The LOHAS plug into wall night light guide you in the dark, perfect for home lighting..
  • Energy Efficient: Work with dusk-to-dawn sensor, brightness changes according to ambient light. The darker the surroundings are, the brighter the nightlight will be..
  • Widely Used: This plug-in night light can be used in bedroom, hallway, toilet, passageway, kitchen, living room, nursery room, corridor, etc. Give you lights in the dark..
  • Safe & Reliable: Small size, won’t cover up other sockets, 110-130V AC input, standard US plug, no batteries needed, no heat, safe for kids room..
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LM YN ADXL345 Digital 3-Axis Acceleration Gravity Tilt Sensor Module IIC SPI 3V to 5V

  • ADXL345 is well suited for mobile device applications. Can measure the static acceleration of gravity in tilt-sensing applications, it can also measure both dynamic acceleration resulting from motion or shock. Its high resolution (4 mg / LSB), capable of measuring the angle of inclination changes less than 1.0 °.003cbr003e.
  • Digital output data is 16-bit twos complement format, via SPI (3-wire or 4-wire) or I2C digital access interface.003cbr003e.
  • ADXL345 is a small, thin, low-power 3-axis accelerometer with high resolution (13-bit) measurement at up to 16g.003cbr003e.
  • The device offers a variety of special detection. Activity and inactivity sensing detect whether the motion occurs, and the acceleration on any axis exceeds the limits set by the user. Tap detection function can detect and double-click action. Free-fall detection can detect whether the device is falling. These functions can be mapped to two interrupt output pins a. 32 First In First Out (FIFO) buffer can be used to store data to minimize host processor intervention.003cbr003e.
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Adafruit 1918 Analog UV Light Sensor Breakout - GUVA-S12SD

  • photosensitive resistance module's most sensitive to ambient light, commonly used to detect environment around the brightness of the light, or MCU trigger relay module, etc..
  • module in the environment light intensity than set threshold, output high level DO end, when the environment light intensity more than set threshold, the DO output low level.
  • the DO output can be directly connected to microcontroller, through single chip microcomputer to detect the high and low level, thus to detect the environment light intensity change.
  • the DO output can be directly driven our relay module, which can form a light-operated switch..
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FORA IR18 Infrared Ear Digital Thermometer Quick and Accurate Measurement for Baby Kids and Adults Fever Alarm Bonus Probe Covers

  • Clinical accuracy at home: Our IR18 thermometer can give you an accurate and reliable reading in only 1 second. Its built-in high-efficiency....
  • Quick AND SMART Infrared Reading – Easily detect your child’s accurate temperature by placing the thermometer inside the ear..
  • Intelligent fever alarm: An obvious red light shows on the large backlit LCD screen to indicate a fever. The backlit display allows you to obtain....
  • 10 recent readings in memory: The IR18 stores 10 of the most recent measurements to conveniently track body temperature changes..
  • Bonus Probe Cover (20 PCS) within the package..
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LITLISFlY Solar Spot Lights Outdoor Landscape Lights, IP67 Waterproof 50 LEDs Solar Spotlight Outdoor Auto On/Off, Solar Outdoor Lights Garden Pool Tree Lights, 3 Modes Solar Spotlight for Yard,4pack

  • ... ⭐【3 Modes Brightness Lighting】The outdoor solar yard lights built in 3 brightness grades for chosen, press the power button and switch the modes between Low Light Mode/ Medium Light Mode/ High Light Mode (18-12-6Hrs using time). The solar tree lights can dusk-to-dawn automatically detect changes in brightness of the external environment. The solar panels can automatically detect whether it’s day or night using the brightness of its surroundings..
  • ⭐【Excellent quality & IP67 Waterproof】The solar spot lights used high-strength ABS material, and pass the strict air-tightness test. The solar landscape lights can withstand all kinds of terrible weather such as rain, snow, high frost, high temperatures, etc. It is perfect for outdoor use! The IP67 protection level enables the solar outdoor spotlights to work normally under temperatures ranging from -20~50°C. And will last longer than IP65 waterproof products or others..
  • ⭐【Larger Brightness Range & Higher Conversion Rate】Upgraded outdoors solar landscape spotlights with 120º wide angle lighting, providing a super bright for a wide area and it can illuminate longer. The sol....
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