Sensors

Reed Switch

Reed Switch

This is a small device called a reed switch. When the device is exposed to a magnetic field, the two ferrous materials inside the switch pull together and the switch closes. When t..

$2.25

Reed Switch - Insulated

Reed Switch - Insulated

This is a small device called a reed switchhttp://en.wikipedia.org/wiki/Reed_switch. When the device is exposed to a magnetic field, the two ferrous materials inside the switch pul..

$2.95

Force Sensitive Resistor 0.3

Force Sensitive Resistor 0.3

 This is a small force sensitive resistor. It has a 0.16" (4 mm) diameter active sensing area. This FSR from Interlink Electronics will vary its resistance depending on how much pr..

$8.25

Mini Photocell - LDR

Mini Photocell - LDR

This is a very small light sensor. A photocell changes (also called a photodetector) resistance depending on the amount of light it is exposed to. These little sensors make great a..

$1.95

Light to Frequency Converter - TSL235R

Light to Frequency Converter - TSL235R

The TSL235R light-to-frequency converter outputs a square wave (50% duty cycle) with frequency directly proportional to light intensity (irradiance). The device has been temperatur..

$3.73

Mini Photocell - LDR clear

Mini Photocell - LDR clear

This type of photoresistor is made of environment-friendly materials(no Cadmium and Lead) compared with the traditional CDS photoresistor. It changes resistance depending on the..

$1.59

Thermistor 10K

Thermistor 10K

10K thermistor with a negative temperature coefficient. Good choice for temp-sensing applications. Note: You get only one thermistor. ..

$1.00

Carbon Monoxide CO Gas Sensor (MQ7)

Carbon Monoxide CO Gas Sensor (MQ7)

This is a simple-to-use Carbon Monoxide (CO) sensor, suitable for sensing CO concentrations in the air. The MQ-7 can detect CO-gas concentrations anywhere from 20 to 2000ppm. ..

$11.95

Temperature Sensor - TMP36

Temperature Sensor - TMP36

This is the same temperature sensor that is included in our SparkFun Inventor's Kit. The TMP36 is a low voltage, precision centigrade temperature sensor. It provides a voltage outp..

$2.50

Light Dependent Resistor LDR 5MM

Light Dependent Resistor LDR 5MM

Photosensitive resistance is the resistance of a semiconductor material, the conductivity change with light intensity varies. The use of this feature will work made of different..

$1.50

Hall Effect Sensor - US1881

Hall Effect Sensor - US1881

The US1881 is an integrated Hall effect latched sensor. That's nice but what does it do? Holding a magnet near the sensor will cause the output pin to toggle. This makes for a robu..

$1.95

Reed Switch

Reed Switch

This is a small device called a reed switch. When the device is exposed to a magnetic field, the two ferrous materials inside the switch pull together and the switch closes. When t..

$1.25

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