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Ultrasonic Range Finder - LV-MaxSonar-EZ0
Price: $52.08
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Sparkfun Item #: SEN-08502 -

"This is the fantastically easy to use sensor from Maxbotix. We are extremely pleased with the size, quality, and ease of use of this little range finder. The serial interface is a bit odd (it’s RS232 instead of standard TTL), but the PWM and Analog interfaces will allow any micro to listen easily enough. The sensor provides very accurate readings of 0 to 255 inches (0 to 6.45m) in 1 inch increments with little or no dead zone! Maxbotix is offering the EZ0, EZ1, EZ2, EZ3, and EZ4 with...

Ultrasonic Range Finder - LV-MaxSonar-EZ1
Price: $47.38
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Sparkfun Item #: SEN-00639 -

"This is the fantastically easy to use sensor from Maxbotix. We are extremely pleased with the size, quality, and ease of use of this little range finder. The serial interface is a bit odd (it’s RS232 instead of standard TTL), but the PWM and Analog interfaces will allow any micro to listen easily enough. The sensor provides very accurate readings of 0 to 255 inches (0 to 6.45m) in 1 inch increments with little or no dead zone! Maxbotix is offering the EZ0, EZ1, EZ2, EZ3, and EZ4 with...

Ultrasonic Range Finder - LV-MaxSonar-EZ3
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Price: $51.04
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Sparkfun Item #: SEN-08501 -

"This is the fantastically easy to use sensor from Maxbotix. We are extremely pleased with the size, quality, and ease of use of this little range finder. The serial interface is a bit odd (it’s RS232 instead of standard TTL), but the PWM and Analog interfaces will allow any micro to listen easily enough. The sensor provides very accurate readings of 0 to 255 inches (0 to 6.45m) in 1 inch increments with little or no dead zone! Maxbotix is offering the EZ0, EZ1, EZ2, EZ3, and EZ4 with...

Ultrasonic Range Finder - LV-MaxSonar-EZ4
Price: $51.04
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Sparkfun Item #: SEN-08504 -

"This is the fantastically easy to use sensor from Maxbotix. We are extremely pleased with the size, quality, and ease of use of this little range finder. The serial interface is a bit odd (it’s RS232 instead of TTL), but the PWM and Analog interfaces will allow any micro to listen easily enough. The sensor provides very accurate readings of 0 to 255 inches (0 to 6.45m) in 1 inch increments with little or no dead zone! Maxbotix is offering the EZ0, EZ1, EZ2, EZ3, and EZ4 with...

Ultrasonic Range Finder - XL-MaxSonar-EZ0
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Price: $91.21
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Sparkfun Item #: SEN-09491 -

"The XL series of MaxSonars are a super high-performance version of the easy-to-use sonar range finder from Maxbotix. The XL series of this sensor features higher resolution, longer range, higher power output and better calibration when compared to the LV version. We are extremely pleased with the size, quality, and ease of use of this little range finder. The sensor provides very accurate readings from 0 to 765cm (0 to 25.1ft) with 1cm resolution. This sensor can be powered with anywhere...

Ultrasonic Range Finder - XL-MaxSonar-EZ3
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Price: $91.21
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Sparkfun Item #: SEN-09494 -

"The XL series of MaxSonars are a super high-performance version of the easy-to-use sonar range finder from Maxbotix. The XL series of this sensor features higher resolution, longer range, higher power output and better calibration when compared to the LV version. We are extremely pleased with the size, quality, and ease of use of this little range finder. The sensor provides very accurate readings from 0 to 765cm (0 to 25.1ft) with 1cm resolution. This sensor can be powered with anywhere...

Ultrasonic Range Finder - XL-MaxSonar-EZ4
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Price: $91.21
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Sparkfun Item #: SEN-09495 -

"The XL series of MaxSonars are a super high-performance version of the easy-to-use sonar range finder from Maxbotix. The XL series of this sensor features higher resolution, longer range, higher power output and better calibration when compared to the LV version. We are extremely pleased with the size, quality, and ease of use of this little range finder. The sensor provides very accurate readings from 0 to 765cm (0 to 25.1ft) with 1cm resolution. This sensor can be powered with anywhere...

Ultrasonic Range Finder - XL-MaxSonar-WR1
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Price: $156.42
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Sparkfun Item #: SEN-09496 -

"This is the new, weather resistant, field-hardened WR1 from Maxbotix. The XL series of this sensor features higher resolution, longer range, higher power output and better calibration when compared to the LV version. The WR1 uses a robust PVC housing, is designed to meet IP67 water intrusion, and matches standard electrical ¾" PVC pipe fittings. The sensor provides very accurate readings from 0 to 765cm (0 to 25.1ft) with 1cm resolution. This sensor can be powered with anywhere between...

Ultrasonic Sensor - HC-SR04
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Price: $6.87
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Sparkfun Item #: SEN-15569 -

This is the HC-SR04 ultrasonic distance sensor. This economical sensor provides 2cm to 400cm of non-contact measurement functionality with a ranging accuracy that can reach up to 3mm. Each HC-SR04 module includes an ultrasonic transmitter, a receiver and a control circuit. There are only four pins that you need to worry about on the HC-SR04: VCC (Power), Trig (Trigger), Echo (Receive), and GND (Ground). You will find this sensor very easy to set up and use for your next range-finding project!...

URM ultrasonic sensor Rubber Ring
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Price: $0.78
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DFRobot Item #: FIT0187 -

This rubber ring is used to afix ultrasonic sensor. It fits URM37 V4.0 Ultrasonic Sensor For Arduino / Raspberry Pi and URM04 Ultrasonic Sensor (RS485). NOTE: Other ultrasonic sensor may fit, you have to check the dimensions.|Specification| Material: Rubber Inside diameter: 16mm Outside diameter: 26mm Thickness: 10mm|ShippingList| Rubber ring x1 ...

URM04 Ultrasonic Sensor (RS485)
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Price: $48.35
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DFRobot Item #: SEN0002 -

The URM04 Ultrasonic sensor is developed based upon our popular URM37 ultrasonic sensor, it is using RS485 interface which allows multiple sensors to be used simultaneously . The RS485 interface allows a number of sensors working together. Up to 32 URM04 may be connected together in a network. The ultrasonic sensor allows you to determine the exact distance of an obstacle in the sonar field of view. The cleverness of your robot will depend on a sensitive sensor similar to the one bats use to...

URM06 - Analog Ultrasonic sensors
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Price: $103.26
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DFRobot Item #: SEN0152 -

Ultrasonic sensors emit ultrasonic pulses, and by measuring the time of ultrasonic pulse reaches the object and back to the transducer, the distance of sensor from the target object is calculated. They are widely used in detecting displacement, thickness, distance, water level, material level and transparent objects. The URM06 - Analog Ultrasonic sensor provides very short to long-range detection and ranging from 20cm ~ 10m, comes in a compact, robust PVC housing and matches 35mm electrical...

URM06 - PULSE Ultrasonic sensors
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Price: $103.26
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DFRobot Item #: SEN0151 -

Ultrasonic sensors emit ultrasonic pulses, and by measuring the time of ultrasonic pulse reaches the object and back to the transducer, the distance of sensor from the target object is calculated. They are widely used in detecting displacement, thickness, distance, water level, material level and transparent objects. The URM06 - PULSE Ultrasonic sensor provides very short to long-range detection and ranging from 20cm ~ 10m, comes in a compact, robust PVC housing and matches 35mm electrical...

URM07 - UART Low-Power Consumption Ultrasonic Sensor (20~750cm)
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Price: $25.86
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DFRobot Item #: SEN0153 -

An ultrasonic sensor measures distance by calculating the time difference between sending a signal and receiving an echo from an object. It uses echolocation to measure distances, just like a bat.The URM07 is an ultra low-power sensor. The effect range is up to 7.5m, and it has a wide range power supply of 3.0 - 5.5V. It is directly compatible with 3.3V or 5V devices such as Arduino, Raspberry Pi. etc. The average operating current is only 5mA and standby current is only 14uA.According to the...

URM37 V4.0 Ultrasonic Sensor For Arduino / Raspberry Pi
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Price: $23.96
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DFRobot Item #: SEN0001 -

URM37 V4.0 Arduino Ultrasonic Sensor comes with temperature compensation which provides better distance measurement accuracy. It is very unique feature in the industry. URM37 V4.0 Arduino Ultrasonic Sensor offers output modes: analog output, switch, serial (TTL and RS232 level optional) and PWM. With analog mode, the sensor outputs voltage which is proportional with distance, it can be connected to Arduino, Raspberry Pi and LattePanda(windows 10 development board).With switch mode, the...

USB Weather Board
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Price: $156.42
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Sparkfun Item #: SEN-10586 -

USB Weather Board Description: Got weather? This board can handle it. The USB Weather Board includes onboard sensors for barometric pressure, humidity, temperature, and light level. We've also added headers in the new version so you can connect the board to our weather meters (not included), adding sensors for wind speed, wind direction, and rainfall. You can send all this data to a computer or datalogger via mini-USB cable, TTL serial (3.3V), or wirelessly...

UV Sensor Module-UVM30A
Price: $36.55
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Elecrow Item #: EL-SEUV30M -

    The UV Sensor is used for detecting the intensity of incident ultraviolet(UV) radiation. This form of electromagnetic radiation has shorter wavelengths than visible radiation. This module is based on the sensor UVM-30A, which has a wide spectral range of 200nm-370nm. The module outputs electrical signal which varies with the UV intensity, which gives your suggestion if it is a good idea to beach today. Specification Working voltage: DC 3~5V Curent: 0.06mA(Standard)/0.1mA...

Vernier Sensor -  Gas Pressure Sensor
Price: $173.10
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Sparkfun Item #: SEN-12874 -

"This is the Vernier Gas Pressure Sensor, an easy to operate tool that can be used to monitor pressure changes of a gaseous element. The range on this Vernier sensor is wide enough to perform pressure vs. volume (Boyle’s law) experiments yet it is sensitive enough to conduct vapor-pressure or pressure-temperature experiments. These Gas Pressure Sensors offer the user to test in a pressure range of 0 to 2.1 atm (0 to 210 kPa) to a max of 4 atm. Driving this sensor is the Honeywell...

Vernier Sensor -  Photogate
Price: $93.80
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Sparkfun Item #: SEN-12876 -

"This is the Vernier Photogate, a new take on the traditional photogate. By emitting a beam of infrared light from one upright to the other, the Photogate can detect when an object passes between the upright gates, breaking the beam. Not only can this Photogate detect objects moving through the interior of itself but also outside by means of a “laser gate”. Simply close a mechanical shutter to block the internal IR gate and shine a laser pen (not included) into the laser gate hole...

Vernier Sensor - Dual-Range Force Sensor
Price: $227.36
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Sparkfun Item #: SEN-12873 -

"This is the Vernier Dual-Range Force Sensor, a great general purpose apparatus that can be used to measure the push and pull of different objects and forces. This Vernier sensor is perfect when used as a replacement for a hand-held spring scale or when mounted on a dynamics cart to track and read collisions. Studying friction, some simple harmonic motion, and centripetal force information have never been easier to read. Each Dual-Range Force Sensor has a resolution range of between 0.01...

Vernier Sensor - pH Sensor
Price: $164.75
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Sparkfun Item #: SEN-12872 -

"This is the Vernier pH Sensor, a simple device that can be used to measure the acidity and basicity of liquids. This Vernier sensor can be used in a multitude of applications including acid-base titrations, pH monitoring in home aquariums, analysis of water quality in lakes and streams, and more. Each pH sensor probe is a sealed, gel-filled, type with a hard outer epoxy body that can function in a temperature range of 5 to 80°C. Additionally, these sensors can test in the typical pH...

Vernier Sensor - Stainless Steel Temperature Probe
Price: $60.41
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Sparkfun Item #: SEN-12871 -

"This is the Stainless Steel Temperature Probe, a tough little Vernier Sensor that can be used to measure the temperature of organic liquids and even salt solutions, acids, and bases (just don’t mix the last two). This sensor probe can be used the same as almost any other thermometer for experiments and in a multitude of fields like chemistry, biology, earth science, and more. Each sensor probe has a temperature range of -40 to 135°C (–40 to 275°F). Make sure not to use...

Walabot Developer
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Price: $1,147.64
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Sparkfun Item #: SEN-14535 -

"The Walabot Developer is a programmable 3D sensor inside a protective enclosure that looks into objects using radio frequency technology. This technology breaks through known barriers, bringing highly sophisticated sensing capabilities to your fingertips. This Walabot Developer version uses an 18-antenna array to illuminate the area in front of it and sense the returning signals. The signals are produced and recorded by a VYYR2401 A3 System-on-Chip integrated circuit. They are then...

Walabot Starter
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Price: $260.76
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Sparkfun Item #: SEN-14534 -

"The Walabot Starter is a small, programmable sensor tool that looks into objects using radio frequency technology sense the environment, bringing highly sophisticated sensing capabilities to your fingertips. This Walabot Starter version uses a three-antenna array to illuminate the area in front of it and sense the returning signals. The signals are produced and recorded by a VYYR2401 A3 System-on-Chip integrated circuit. They are then communicated to a host device (like your phone or...

Water Level Sensor
Price: $14.97
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Availability: Out of Stock
SeeedStudio Item #: SWWater -

Water Level SensorThis sensor is a device used to sense the level of liquid within a tank, it may actuate a pump, an indicator, an alarm, or other devices. Spec:     Cable length: 40cm     Maximum load: 50w     Max Switching votage: 100V DC     Minimum Votage: 250v DC     Maximum Switching Current: 0.5A     Max load current: 1.0A     Max contact resistance: 0.4 Ω...

Water-proof Ultrasonic Sensor
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Price: $45.62
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DFRobot Item #: SEN0207 -

Most ultrasonic distance sensors aren't waterproof which can be a problem if you need your project to withstand the elements outdoors. No need to worry any more! We have developed waterproof ultrasonic distance sensors with a waterproof sealed emitter. This sensor is suitable for outdoor applications such as car reversing sensors, security alarms, industrial inspection, etc. What will you make?Note: V2 has increased its resolution and accuracy.|Specification| Operating Voltage: 5V DC Static...

Waterproof DS18B20 Digital Temperature Sensor for Arduino
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Price: $11.89
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DFRobot Item #: DFR0198 -

This is a waterproofed version of the DS18B20 Temperature sensor. Handy for when you need to measure something far away, or in wet conditions. While the sensor is good up to 125°C the cable is jacketed in PVC so we suggest keeping it under 100°C. Because they are digital, you don't get any signal degradation even over long distances! The DS18B20 provides 9 to 12-bit (configurable) temperature readings over a 1-Wire interface, so that only one wire (and ground) needs to be connected...

Waterproof Ultrasonic Sensor with Separate Probe
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Price: $27.58
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DFRobot Item #: SEN0208 -

Most ultrasonic distance sensors aren't waterproof which can be a problem if you need your project to withstand the elements outdoors. No need to worry any more! We have developed waterproof ultrasonic distance sensors with a waterproof sealed emitter. This sensor is suitable for outdoor applications such as car reversing sensors, security alarms, industrial inspection, etc. What will you make? |Specification| Operating voltage: DC5V Static current: 5mA Operating current: 30mA Operating range:...

Weather Meters
Price: $133.82
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Sparkfun Item #: SEN-08942 -

"Whether you’re an agriculturalist, a professional meteorologist or a weather hobbyist, building your own weather station can be a really rewarding project. When you’re measuring weather, however, you need some pretty specialized sensors. This kit represents the three core components of weather measurement: wind speed, wind direction and rainfall. None of the sensors in this kit contain active electronics, instead they use sealed magnetic reed switches and magnets so you’ll...

Webcam - USB
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Price: $29.12
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Sparkfun Item #: SEN-13873 -

"This is a simple USB webcam that can be plugged into your computer or dev board and start capturing video right away. The resolution is 1024x768, which is adequate for motion tracking or object detection, but don’t expect to use it for photography or movie making. This new version has added a microphone as well. Note: This webcam works well in Linux, so it pairs well with a pcDuino or other Single Board Computer. Features: Max Resolution: 1024x768 4' (1219mm) Cable USB A connector 3.5mm...

Weight Sensor Kit- 3KG
Price: $28.06
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Elecrow Item #: EL-SEN003KGK -

     This Kit includes a weight sensor that has a capacity of 3kg, it included all the related parts includes the HX711 ampplifier,100g weights, wires and the related mechanic parts to install the weight sensor, You just need to connect this amplified signal to your microcontroller such as Arduino, to make an electronic scale or a pressure testing application Partlist 3KG weight sensor x1; HX711 amplifier X1; 100g weights X1; weight sensor mechanic parts x1; Wiki &...

WS2801 Breakout
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Price: $5.99
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Sparkfun Item #: BOB-10504 -

WS2801 Breakout Description: This is a breakout board for the WS2801 RGB LED controller, the same IC used in our addressable RGB LED strips. The board comes with the chip on one side and an RGB LED on the other. Several of these breakouts can be chained together to form a display or an addressable string. Voltage, ground, clock and data are broken out as input on one side and output on the other to standard 0.1" spaced headers. Documents: Schematic Eagle Files Datasheet (WS2801)...

ZX Distance and Gesture Sensor
Price: $43.39
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Sparkfun Item #: SEN-12780 -

"The ZX Distance and Gesture Sensor is a touchless sensor that is capable of looking for simple gestures. Developed in conjunction with XYZ Interactive, the sensor uses their GestureSense® technology to recognize the distance of an object away from the sensor up to about 10 inches (~25cm) and the location of the object from side to side across the sensor in about a 6 inch (~15cm) span. You will be able to use I2C or UART to communicate with the ZX Sensor via an Arduino-based...

ZX Distance and Gesture Sensor
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Price: $43.39
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Sparkfun Item #: SEN-13162 -

"The ZX Distance and Gesture Sensor is a touchless sensor that is capable of looking for simple gestures. Developed in conjunction with XYZ Interactive, the sensor uses their GestureSense® technology to recognize the distance of an object away from the sensor up to about 12 inches (30cm, referred to as the “Z” axis) and the location of the object from side to side across the sensor in about a 6-inch (15cm) span, referred to as the “X” axis. You will be able to use...