Gauges and sensors

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Acceleration (‏13)
Dust (‏3)
Moisture (‏7)
Flexion (‏2)
Movement (‏34)
Biometric (‏12)
Gas (‏9)
Other (‏5)
Compass (‏1)
Gyro (‏2)
Pressure (‏21)
Current (‏4)
Light (‏8)
Temperature (‏23)
Distance (‏19)
Magnetic (‏26)

Featured products

  Temp/humidity sensor SHT15 pcb
This is a simple breakout board for the SHT15 humidity sensor from Sensirion. The SHT15 digital humidity and temperature sensor is fully calibrated and offers high precision and excellent long-term stability at low cost. The digital CMOSens Technology integrates two sensors and readout circuitry on one single chip. These sensors are really impressive! Very sensitive and straight forward to use. Board comes assembled and tested with the SHT15. Features: 2 factory calibrated sensors for relative humidity & temperature Digital 2-wire interface Precise dewpoint calculation possible Measurement range: 0-100% RH Absolute RH accuracy: +/- 2% RH (10...90% RH) Repeatability RH: +/- 0.1% RH Temp. accuracy: +/- 0.3°C @ 25°C Fast response time Low power consumption (typ. 30 µW) Low cost High precision sensor at low cost Leading CMOSens Technology for superior long-term stability Applications: Precise data logging Transmitters Automation & process control Building control and HVAC Test & Measurement Medical
  Flex Sensor 4.5"
A simple flex sensor 4.5" in length. As the sensor is flexed, the resistance across the sensor increases. Patented technology by Spectra Symbol - they claim these sensors were used in the original Nintendo Power Glove. I love the Nintendo Power Glove. It's so bad! The resistance of the flex sensor changes when the metal pads are on the outside of the bend (text on inside of bend). Straight (unflexed) resistance: ~9000 Ohm 90 degree bend resistance: ~14000 Ohm 180 degree bend resistance : ~22000 Ohm Connector is 0.1" spaced and bread board friendly.
1 - $16.19
10 - $12.95
  Gas sensor methane MQ-4
A simple-to-use compressed natural gas (CNG) sensor, suitable for sensing natural gas (composed of mostly Methane [CH4]) concentrations in the air. The MQ-4 can detect natural gas concentrations anywhere from 200 to 10000ppm. The MQ4 has a high sensitivity and fast response time. The sensor's output is an analog resistance. The drive circuit is very simple; Just connect it to 5V, GND, and the output to an ADC via a resistor. Can be mounted on suitable breakout board 41004066. Dimensions: ø19mm x 17mm (without pins)
  SoftPot Membrane Potentiometer - 50mm
SoftPots are a series of extremely thin potentiometers that can be used as position sensors for robots or as a control surface (volume level input for example). The resistance changes linearly from 100ohms to 10kohm when any part of the track is pressed. If no part is pressed, the circuit is open and may need a pull-up/down resistor to prevent random or incorrect readings. All SoftPots have adhesive backing. Connector is 2.54mm spaced and fits breadboards. The headers are slightly too thin to fit well in female headers (regular IC-sockets work better). Length: 50mm Thickness: 0.5mm Power rating: 1W
1 - $9.52
10 - $8.57
  Reed switch 1p NO 0.5A MITI-3V1
Reed switch, single pole. Contact is closed by magnetic force. Manufacturer: Hamlin Type: MITI-3V1 Max voltage: 170V Max current: 0.5A Sensitivity: 12AT Total length: 31.36mm Body length: 6.86mm Body diameter: 1.82mm NB! Cutting the connectors may harm the component, see more under Preview Files ("kapning av ben" - pdf is in English).
1 - $2.99
10 - $2.69
25 - $2.24
  Adafruit GEMMA micro controller for wearables
Add motion and direction sensing to your wearable FLORA project with this high precision 3-axis Accelerometer+Compass sensor. Inside are two sensors, one is a classic 3-axis accelerometer, which can tell you which direction is down towards the Earth (by measuring gravity) or how fast the board is accelerating in 3D space. The other is a magnetometer that can sense where the strongest magnetic force is coming from, generally used to detect magnetic north. By combining this data you can then orient yourself. We based this sensor on the latest version of this popular sensor, the LSM303DLHC. The sensor has a digital (I2C) interface. Attaching it to the FLORA is simple: line up the sensor so its adjacent to the SDA/SCL pins and sew conductive thread from the 3V, SDA, SCL and GND pins. They line up perfectly so you will not have any crossed lines. You can only connect one of these sensors to your FLORA, but you can connect other I2C sensors/outputs by using the set of SCL/SDA pins on the opposite side. Get started with the FLORA Accelerometer with our guide on the Adafruit Learning System! It uses the same Arduino library as our conventional form LSM303 breakout. The example and library code will work 'out of the box' with FLORA. Simply download our library and connect the 3V/SCL/SDA/GND pins, install the library properly and upload our test program to read out accelerometer and magnetic field data. 0.55"/14mm diameter, 0.07"/1.8mm thick This board/chip uses I2C 7-bit addresses 0x32 & 0x3C.
  Vibration sensor piezo right-angle
The Minisense 100 from Measurement Specialties is a low-cost cantilever-type vibration sensor loaded by a mass to offer high sensitivity at low frequencies. Useful for detecting vibration and tap inputs from a user. A small AC and large voltage (up to +/-90V) is created when the film moves back an forth. A simple resistor should get the voltage down to ADC levels. Can also be used for impact sensing or a flexible switch. Comes with solder pins that allows for vertical mounting. Features: Flexible PVDF Piezo Polymer Film Wide dynamic range Laminated for higher voltage output Breadboard friendly leads * Sensitivity: 1V/g * Linearity: * Resonant frequency: 75Hz * Manufacturer: Measurement Specialties * Model: Minisense 100V
1 - $5.42
10 - $4.74
  ZX position and distance sensor
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 microcontroller as well as a computer. On board each ZX Sensor you will find two IR LEDs (inside the brass tubes) and one IR receiver (in the middle). The brass tubes that protect the IR LEDs are actually to block any infrared light going directly from the LEDs to the receiver (we want the light to bounce off an object first). With these IR pieces you will easily be able to ascertain both the Z axis and the X axis of an object (hence the name). In addition to providing Z- and X- axis data about an object, the ZX Sensor is also capable of detecting simple gestures. We have also clearly labeled all the pin outs on the board as well as signifying if they are needed in I2C or UART communication.
  Partikelsensor optisk MAX30105
The SparkFun MAX30105 Particle Sensor is a flexible, powerful sensor enabling sensing of distance, heart rate, particle detection and even the blinking of an eye. The MAX30105 has been equipped with three LEDs as well as a very sensitive photon detector. The idea is to pulse the different LEDs, then detect what shines back. Based on the reflected signature its possible to detect different types of particles or materials (such as oxygenated blood or smoke from a fire). The MAX30105 utilizes a red LED, a green LED, and an IR (Infrared) LED for presence sensing, heart-beat plotting and heart-rate monitoring among its multitude of uses, including Pulse Oximetry. The MAX30105 is designed to operate at 5V and can communicate with both 3.3V and 5V microcontrollers. Weve also written an Arduino library for the MAX30105 Breakout which takes care of all of the I2C communication, bit shifting, register writing and sample reading. Features: *Built-in Red, IR, and Green LEDs *5V operation (3.3V is allowed, but green LED is not guaranteed to operate) *Onboard 1.8V regulation and I2C interface circuitry *Sensitivity configurable down to 7.81pA *3200Hz maximum sample rate *Built-in 32 sample FIFO (First In, First Out) *Applications include presence detection, distance sensing (18" max), pulse oximetry, blood oxygen saturation level (SpO2), smoke and particle detection
  Load cell 50Kg round - TAS606
This load sensor, sometimes called a strain gauge, is the same one found in digital bathroom scales (you know, the ones you use in January for your New Years resolutions, and then forget about a month later). This sensor can measure up to about 110 pounds. Check the video below for a simple explanation on how these work and how to use them.
  Reed switch module mini
Module with a magnetic reed switch that closes in the proximity of magnets. Can be used as a contact-less switch in a wide range of applications. Reed switches are very robust and can operate with very high switching frequencies.
  EeonTex resistivt tyg
Soft and stretchy, this EeonTex Stretchy Variable Resistance Sensor fabric is great for making soft sensors or wearables that need to adjust and move. This is a bidirectionally stretchy nylon+spandex fabric coated with a long-lasting conductive coating that changes resistance when you pull on it! It's perfect for making stretch or strain sensors, by measuring the resistance change from one end of the fabric to the other - you'll need a resistive divider and analog-reading microcontroller. Each order comes with one sheet of 12"x13" inch / 33 x 30cm fabric with a nominal 0.5mm thickness. The fabric as a soft hand, and is easy to stitch, sew, or serge. Each sheet has a resting 20K-ohm/square inch surface resistivity and decreases to maybe 1/2 that when stretched. It has been tested up to 30 washes with no appreciable change in resistivity. TECHNICAL DETAILS Composition: 72% Nylon, 23% spandex Part number: NW170-SLPA-20k Mass per unit area: 4.8 oz/square yard Elongation: warp 198-248, warp recovery 85% Surface resistivity: 20k ohms per square inch Dynamic range: 5 g-150 kg Data acquisition rate: up 500 KHz Weight: 4.8 oz/square-yd, 170 grams /m2 Thickness: 0.5 mm Operating temperature range: -40 - 100C Product Dimensions: 325.0mm x 305.0mm x 0.5mm / 12.8" x 12.0" x 0.0"