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Sensors Section
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Click here to learn more about sensors ...
You may also want to look at sensor products in the Counters, Timers and Sensors category of our Electronic Kits section and in the Sensors category of our ICs section.
| Ultrasonic Sensors | |||||||||||||
 | Ping Bracket Kit from Parallax With this information you can effectively navigate the path with few obstructions, or hone in on an object you would like follow. Parallax offers this kit for a very low price to encourage robot enthusiasts to experiment with our Ping))) ultrasonic sensor. For the price of what many companies sell a Futaba S148 servo were providing the complete kit with free technical support. Download the documentation to review the parts included in this kit. With the purchase of a few additional components identified in the documentation for this product you can also mount a HM55B Compass Module on the same bracket. This kit does not include the Ping Ultrasonic Range Finder Manufacturer: Parallax. Manufacturer's Part Number: 570-28015. More Product Details ... | ||||||||||||
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 | Ping Ultrasonic Range Finder from Parallax Parallax's PING))) ultrasonic sensor provides a very low-cost and easy method of distance measurement. This sensor is perfect for any number of applications that require you to perform measurements between moving or stationary objects. Naturally, robotics applications are very popular but you'll also find this product to be useful in security systems or as an infrared replacement if so desired. You will definitely appreciate the activity status LED and the economic use of just 1 I/O pin. Manufacturer: Parallax. Manufacturer's Part Number: 28015. More Product Details ... | ||||||||||||
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 | Ultrasonic Movement Detector Electronic Kit This ultrasonic motion detector raises a pin when it detects motion. Use it for alarm systems or robotics applications. This is a soldering kit that includes the PCB and all required parts except for the battery or power supply. Manufacturer: KITSRUS. Manufacturer's Part Number: K049. More Product Details ... | ||||||||||||
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 | Ultrasonic Range Finder SRF04 This SRF04 is the most popular sonar sensor for use in hobby robots. It transmits an ultrasonic "ping" when instructed by your program and returns a signal when it receives an echo. Your program determines distance by timing the interval between signals. Its overall range is approximately 1" to 9'. It can detect a 1" diameter broom handle 6.5' or further away. This device works great for most "target avoidance" applications including most combat competitions. For simpler programming and greater control, consider the SFR08 sensor. Manufacturer: DV. Manufacturer's Part Number: SRF04. More Product Details ... | ||||||||||||
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| Ultrasonic Range Finder SRF08 with Header The factory supplied SRF08 provides pads to which you must solder wires or a 5-pin header such as our Header .100" PCB Male 5-Pin. This part is just a standard SRF08 with the header pre-soldered for your convenience. You may also want to order a pre-built cable Cable for Ultrasonic Sensors. Manufacturer: DV. Manufacturer's Part Number: SRF08. More Product Details ... | |||||||||||||
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| Ultrasonic Range Finder SRF04 with Header The factory supplied SRF04 provides pads to which you must solder wires or a 5-pin header such as our Header .100" PCB Male 5-Pin. This part is just a standard SRF08 with the header pre-soldered for your convenience. You may also want to order a pre-built cable Cable for Ultrasonic Sensors. Manufacturer: DV. Manufacturer's Part Number: SRF04. More Product Details ... | |||||||||||||
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 | Ultrasonic Range Finder SRF08 (High Performance) This is the smarter cousin of Devantech's popular SRF04 sonar sensor. It provides twice the sensing range of the SRF04 plus an on-board MCU which handles the critical timing functions and distance calculations. The SRF08 can report up to 17 echoes from each ping, allowing your robot to identify the shape of a target or identify an open doorway. Echoes can be reported as inches, centimeters or time of reflection. Its overall range is approximately 1" to 18'. Manufacturer: DV. Manufacturer's Part Number: SRF08. More Product Details ... | ||||||||||||
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| Ultrasonic Range Finder SRF05 This SRF04 is the most popular sonar sensor for use in hobby robots. It transmits an ultrasonic "ping" when instructed by your program and returns a signal when it receives an echo. Your program determines distance by timing the interval between signals. Its overall range is approximately 1" to 9'. It can detect a 1" diameter broom handle 6.5' or further away. This device works great for most "target avoidance" applications including most combat competitions. For simpler programming and greater control, consider the SFR08 sensor. Manufacturer: DV. Manufacturer's Part Number: SRF05. More Product Details ... | ||||||||||||
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 | Ultrasonic Transducers: Transmitter- Outdoor Manufacturer: PROWAVE. Manufacturer's Part Number: 400ET180. More Product Details ... | ||||||||||||
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 | Ultrasonic Transducers: Receiver Manufacturer: PROWAVE. Manufacturer's Part Number: 400SR160. More Product Details ... | ||||||||||||
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| Ultrasonic Transducers: Transmitter Manufacturer: PROWAVE. Manufacturer's Part Number: 400ST160. More Product Details ... | ||||||||||||
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 | Ultrasonic Transducer: Underwater Submersible tranducer in a sealed resin package for underwater applications. Manufacturer: PROWAVE. Manufacturer's Part Number: 200LM450. More Product Details ... | ||||||||||||
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| Ultrasonic Transducers: RX/TX Set This bundle consists of one Ultrasonic Transducers: Receiver and one Ultrasonic Transducers: Transmitter. Save up to $1.99 with this bundle! Build your own sonar sensor using these sensors. Sensor circuits generally require a crystal such as Crystal 40.000 KHZ. Manufacturer: PROWAVE. Manufacturer's Part Number: 400ST160/400SR160. More Product Details ... | ||||||||||||
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| Ultrasonic Transducers: RX/TX Set - Outdoor This bundle consists of one Ultrasonic Transducers: Receiver - Outdoor and one Ultrasonic Transducers: Transmitter- Outdoor. Save up to $1.99 with this bundle! Build your own sonar sensor using these sensors. Sensor circuits generally require a crystal such as Crystal 40.000 KHZ. This sensor has a water resistant case that is suitable for outdoor applications. Manufacturer: PROWAVE. Manufacturer's Part Number: 400ET180/400ER180. More Product Details ... | ||||||||||||
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| Ultrasonic Transducers: Receiver - Outdoor Manufacturer: PROWAVE. Manufacturer's Part Number: 400ER180. More Product Details ... | ||||||||||||
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| IR and Light Sensors | |||||||||||||
| Listed below are some of our most popular optical sensor modules. You should also take a look at IR LEDs, Detectors and Sensor Modules in our LEDs and Photodetectors section. | |||||||||||||
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| CDS Photo Resistor 16K to 1M Photoresistors provide varying resistance depending on the amount of light reaching the device. They are commonly used as line following sensor and for light alarms. The resistance of this device varies between approximately 1M ohm in total darkness to between 16K and 33K ohm in bright light (10 Lux @ 2856 degrees K). This is a relatively small photoresistor with a diameter of 0.165" (about 3/16"). Manufacturer: PHOTONIC. Manufacturer's Part Number: PDV-P9003. More Product Details ... | |||||||||||||
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| CDS Photo Resistor 30K to 1M Photoresistors provide varying resistance depending on hte amount of light reaching the device. They are commonly used as line following sensor and for light alarms. The resistance of this device varies between approximately 1M ohm in total darkness to between 23K and 33K ohm in bright light (10 Lux @ 2856 degrees K). This is a relatively small photresistor with a diameter of 0.165" (about 3/16"). Manufacturer: PHOTONIC. Manufacturer's Part Number: PDV-P9003-1. More Product Details ... | |||||||||||||
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| CDS Photo Resistor 50K to 20M Photoresistors provide varying resistance depending on hte amount of light reaching the device. They are commonly used as line following sensor and for light alarms. The restance of this device varies between approximately 20M ohm in total darkness to approximately 50K ohm in bright light. This is a relatively small photresistor with a diamiter of 0.165" (about 3/16"). Manufacturer: PHOTONIC. Manufacturer's Part Number: PDV-P9005-1. More Product Details ... | |||||||||||||
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| QRB1134 Reflective Object Sensor The QRB1134 consists of an infrared emitting diode and an NPN silicon phototransistor mounted in a black plastic housing. The phototransistor responds to radiation from the emitting diode only when a reflective object passes within its field of view. The sensor is optomized to detect objects within 0.2" of the sensor. In robotics, this sensor is often used as an edge detector or a line following sensor. Manufacturer: FAIRCHILD. Manufacturer's Part Number: QRB1134. More Product Details ... | |||||||||||||
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 | Sharp GP2D12 IR Sensor - 30" / Analog This is an integrated sensor with IR emitter, detector, optics and timing logic. Its output is an analog voltage proportional to the distance to the nearest object in its field of view. The output signal is compatible with low-cost ADC circuits including those built into many robot controllers. The sensor can detect objects within a range of approximately 4" to 30". The electrical connections to this sensor use an unusual miniature connector. We recommend that you order either Cable for Sharp 3-Pin IR Sensors or Cable for Sharp 3-Pin IR Sensors for Breadboarding with your sensor. Manufacturer: Sharp. Manufacturer's Part Number: GP2D12. More Product Details ... | ||||||||||||
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| Sharp GP2D120 IR Sensor - 11.5" / Analog This is an integrated sensor with IR emitter, detector, optics and timing logic. Its output is an analog voltage proportional to the distance to the nearest object in its field of view. The output signal is compatible with low-cost ADC circuits including those built into many robot controllers. The sensor can detect objects within a range of approximately 1.5" to 11.5".". The electrical connections to this sensor use an unusual miniature connector. We recommend that you order either Cable for Sharp 3-Pin IR Sensors or Cable for Sharp 3-Pin IR Sensors for Breadboarding with your sensor. Manufacturer: Sharp. Manufacturer's Part Number: GP2D120. More Product Details ... | ||||||||||||
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| Sharp GP2D15 IR Sensor - 9.5" Trigger This compact sensor provides a simple on/off signal indicating whether or not an object is detected within 9.5" of the sensor. It is similar to Sharp GP2D12 IR Sensor - 30" / Analog but with a 1-bit digital output that indicates the presence or absence of an object within a fixed range. If all you need to know is whether or not something is in the way, this device requires less hardware and software "glue" than an analog sensor. The standard trigger point is 9.5" but can be reduced by physically modifying the device to change the focal lenght of the detecting lens. The electrical connections to this sensor use an unusual miniature connector. We recommend that you order either Cable for Sharp 3-Pin IR Sensors or Cable for Sharp 3-Pin IR Sensors for Breadboarding with your sensor. Manufacturer: Sharp. Manufacturer's Part Number: GP2D15. More Product Details ... | ||||||||||||
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| Sharp GP2Y0A02YK IR Sensor - 59" / Analog This is an integrated sensor with IR emitter, detector, optics and timing logic. Its output is an analog voltage proportional to the distance to the nearest object in its field of view. The output signal is compatible with low-cost ADC circuits including those built into many robot controllers. The sensor can detect objects within a range of approximately 8" (20cm) to 59" (150cm).". The electrical connections to this sensor use an unusual miniature connector. We recommend that you order either Cable for Sharp 3-Pin IR Sensors or Cable for Sharp 3-Pin IR Sensors for Breadboarding with your sensor. Manufacturer: Sharp. Manufacturer's Part Number: GP2Y0A02YK. More Product Details ... | |||||||||||||
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| Sharp GP2Y0D02YK IR Sensor - 31" Trigger This compact sensor provides a simple on/off signal indicating whether or not an object is detected within 31" of the sensor. It is similar to Sharp GP2D12 IR Sensor - 30" / Analog but with a 1-bit digital output that indicates the presence or absence of an object within a fixed range. If all you need to know is whether or not something is in the way, this device requires less hardware and software "glue" than an analog sensor. The electrical connections to this sensor use an unusual miniature connector. We recommend that you order either Cable for Sharp 3-Pin IR Sensors or Cable for Sharp 3-Pin IR Sensors for Breadboarding with your sensor. Manufacturer: Sharp. Manufacturer's Part Number: GP2Y0D02YK. More Product Details ... | |||||||||||||
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 | Sharp GP2Y0D340K IR Sensor - 16" Trigger This compact sensor provides a simple on/off signal indicating whether or not an object is detected within 16" (40 cm) of the sensor. Manufacturer: Sharp. Manufacturer's Part Number: GP2Y0D340K. More Product Details ... | ||||||||||||
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| Other Sensors | |||||||||||||
| A1302 Magnetic Sensor High sensitivity, ratiometric, linear hall-effect sensor. Manufacturer: ALLEGRO. Manufacturer's Part Number: A1302KUA-T. More Product Details ... | |||||||||||||
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| Boe-Bot CMUCam Kit v1.12 from Parallax Boe-Bot CMUCam Kit v1.12 Manufacturer: Parallax. Manufacturer's Part Number: 30051. More Product Details ... | |||||||||||||
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| Devantech Thermal Array Sensor Manufacturer: DV. Manufacturer's Part Number: TPA81. More Product Details ... | |||||||||||||
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| DS1620 Temperature Sensor The DS1620 is as a digital thermometer with +/-0.5C accuracy from a -0C to +70C. The temperature is read out over a 3-wire serial bus in 2's complement format with 9 bits of resolution. Higher resolution readings can be calculated using data from the DS1620 counter and slope accumulator registers. Manufacturer: DALLAS. Manufacturer's Part Number: DS1620. More Product Details ... | |||||||||||||
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| DS18S20 1-Wire High Precision Temperature Sensor Measures temperatures from 55C to+125C. Fahrenheit equivalent is 67F to+257F Manufacturer: DALLAS. Manufacturer's Part Number: DS18S20+. More Product Details ... | |||||||||||||
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| Flexiforce Pressure Sensor from Parallax This kit includes a Flexiforce thin-film pressure sensor, a 220 ohm resistor, 0.1 uF and 0.01 uF capacitors, and printed documentation. Manufacturer: Parallax. Manufacturer's Part Number: 30056. More Product Details ... | |||||||||||||
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| GP1S036HEZ Photointerrupper Tilt Sensor This small sensor measures tilt in one plane. The device measures 360 of tilt but with only 2 bits (90) resolution indicating upright, upside down, on its left side or on its right side. Manufacturer: Sharp. Manufacturer's Part Number: GP1S036HEZ. More Product Details ... | |||||||||||||
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| GPS Module from Parallax PX module XXXX Manufacturer: Parallax. Manufacturer's Part Number: 28146. More Product Details ... | |||||||||||||
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 | Hitachi H48C 3-Axis Accelerometer Module from Parallax The Hitachi H48C Tri-Axis Accelerometer is an integrated module that can sense gravitational (g) force of 3g on three axes (X, Y, and Z). The module contains an onboard regulator to provide 3.3-volt power to the H48C, analog signal conditioning, and an MCP3204 (four channel, 12-bit) analog-to-digital converter to read the H48C voltage outputs. All components are mounted on a 0.7 by 0.8 inch module. Manufacturer: Parallax. Manufacturer's Part Number: 28026. More Product Details ... | ||||||||||||
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 | HM55B Compass Module from Parallax The Parallax Compass is a dual-axis magnetic field sensor built around the Hitachi HM55B. Parallax makes this compass accessible by providing their surface-mount sensor chip with a 3V onboard voltage regulator and resistor protection in a 0.3 wide 6-pin DIP module. The HM55B is compatible with the BASIC Stamps 5V supply and signal levels. Compass date is read using a simple synchronous serial interface (the BASIC Stamps SHIFTIN and SHIFTOUT commands). Features:
Application Ideas:
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| LM34CZ Temperature Sensor The LM34 is a precision temperature sensor that produces an output voltage proportional to the current measured temperature. The LM34CZ comes in a TO-92 plastic package and has range of -40F to +230F. Manufacturer: NATSEMI. Manufacturer's Part Number: LM34CZ. More Product Details ... | |||||||||||||
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| LM34DZ Temperature Sensor The LM34 is a precision temperature sensor that produces an output voltage proportional to the current measured temperature. The LM34DZ comes in a TO-92 plastic package and has range of +32F to +212F. Manufacturer: NATSEMI. Manufacturer's Part Number: LM34DZ. More Product Details ... | |||||||||||||
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 | Magnetic Compass This device uses magnetic sensors to provide compass direction accurate to within 3-4 degrees of true direction after calibration. Its resolution is 0.1 degree so it can be used to detect very small amounts wandering from an initial course. The device provides both PWM and I2C output for interconnection to almost any controller. Manufacturer: DV. Manufacturer's Part Number: CMPS03. More Product Details ... | ||||||||||||
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| Memsic 2125 Dual-Axis Accelerometer from Parallax The Memsic 2125 is a low cost, dual-axis thermal accelerometer capable of measuring dynamic acceleration (vibration) and static acceleration (gravity) with a range of 2 g. For integration into existing applications, the Memsic 2125 is electrically compatible with other popular accelerometers. Some of the Memsic 2125's features:
A sampling of possible BASIC Stamp applications with the Memsic 2125 include:
Mesmic provides the 2125 in a surface-mount format. Parallax mounts the circuit on a through-hole providing all I/O connections so it can easily be inserted on a breadboard or through-hole prototype area. Manufacturer: Parallax. Manufacturer's Part Number: 28017. More Product Details ... | |||||||||||||
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| QTI Line Follower AppKit for the Boe-Bot from Parallax This add-on kit uses QTI infrared emitter/receiver modules to easily enhance the line following capability of your Boe-Bot robot. The QTI sensors mount underneath the front of the Boe-Bot chassis, and can be positioned to adjust to different width lines. The application in this kit uses three QTI sensor/mounting hardware sets, arranged to follow 3/4-inch black electrical tape on white poster board. As a bonus, we have added a fourth sensor/hardware set. Once you master the basics, use all 4 QTI sensors together to make your own custom applications. Learning to use the QTI is easy with these illustrated instructions and example BASIC Stamp code written by Andy Lindsay, author of Robotics with the Boe-Bot. This kit includes all the circuit and sensor hardware you need to add QTIs to your Boe-Bot:
You will need to supply your own Boe-Bot, white poster board, and black electrical tape. Manufacturer: Parallax. Manufacturer's Part Number: 28108. More Product Details ... | |||||||||||||
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| RFID Blue Eye Key Fob Tag from Parallax The RFID Blue Eye Key Fob Tag is made of translucent blue polycarbonate. This tag has a good reading distance. Designed to work with RFID Reader. Each card is preprogrammed with a unique identification number. Manufacturer: Parallax. Manufacturer's Part Number: 28147. More Product Details ... | |||||||||||||
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 | RFID Card (25mm circle) from Parallax The RFID Disc Sticker is made of PVC and has 3M adhesive on one side. This tag can be glued on flat and clean surfaces. Dimensions: 25mm diameter, 1.0mm thick. Designed to work with RFID Reader. Each card is preprogrammed with a unique identification number. Manufacturer: Parallax. Manufacturer's Part Number: 28148. More Product Details ... | ||||||||||||
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 | RFID Card (50mm circle) from Parallax 55 mm round passive RFID tag designed to work with RFID Reader. Each card is preprogrammed with a unique identification number. Manufacturer: Parallax. Manufacturer's Part Number: 28142. More Product Details ... | ||||||||||||
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 | RFID Card (54mm x 85mm rectangle) from Parallax 54 mm x 85 mm rectangle passive RFID tag designed to work with RFID Reader. Each card is preprogrammed with a unique identification number. Manufacturer: Parallax. Manufacturer's Part Number: 28141. More Product Details ... | ||||||||||||
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 | RFID Reader from Parallax Designed in cooperation with Grand Idea Studio, the Parallax Radio Frequency Identification (RFID) Reader Module is the first low-cost solution to read passive RFID transponder tags from up to 4 inches away. The RFID Reader Module can be used in a wide variety of hobbyist and commercial applications, including access control, automatic identification, robotics, navigation, inventory tracking, payment systems, and car immobilization. Features:
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| SHT11 Temperature and Humidity Sensor Module from Parallax When it comes to precision temperature and humidity measurement, Sensirion has simplified the process their SHT1x sensor series. Through a two-wire serial interface, both temperature and humidity can be read with excellent response time and accuracy. Parallax has simplified the use of the SHT11 by mounting it in a user-friendly 8-pin DIP module. The module includes a data-line pull-up and series limiter making it possible to connect directly to the BASIC or Javelin Stamp. Features:
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| Thermocouple Kit from Parallax Thermocouples provide a low-cost, reliable means of measuring temperature over a wide range. Interpreting thermocouple output can be challenging because of the very low Seebeck output voltage (fractional to low millivolts) and the need to provide cold junction temperature compensation. The Parallax Thermocouple Module uses the Dallas/Maxim DS2760 High Precision Li+ Battery Monitor IC to process the thermocouple output. The Thermocouple Module has the following features:
In addition to the interface module, the kit includes 3 Thermocouple elements: K-type (Chromel / Alumel), J-type (Iron / Constantan), and T-type (Copper / Constantan). This kit is ideally suited to work with a BASIC Stamp BS2P24, BS2P40 or BS2PE. Manufacturer: Parallax. Manufacturer's Part Number: 28022. More Product Details ... | |||||||||||||
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| Twinkle Toes Touch Sensor for Toddler from Parallax These optional bumper sensors (called "Twinkle Toes" in the Advanced Robotics text that comes with Toddler) detect low-lying objects which are not seen by the infrared sensors. Bi-color LEDs glow green for "path clear" and red when the sensors detect an object. The kit includes two toes, extra pieces of wire so you can experiment with custom bumper designs, mounting hardware and two 12" cables for an easy connection to Toddler's BASIC Stamp board. Manufacturer: Parallax. Manufacturer's Part Number: 27312. More Product Details ... | |||||||||||||
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| UGN3503U Magnetic Sensor High sensitivity, ratiometric, linear hall-effect sensor. Manufacturer: ALLEGRO. Manufacturer's Part Number: UGN3503U. More Product Details ... | |||||||||||||
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 | Universal Sensor Mount Mounts Devantech SRF04 or SRF08 Ultrasonic sensors or Sharp GPD2D120, GPD12 or GPD15 IR sensors. These mounts include a pass-through slot for routing your sensor cables and a large number of mounting holes. They are designed for use with the Rogue robot platforms but can be used with almost any robot base. Shown with optional SRF04. Visit | ||||||||||||
