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Sensors

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SENS-PIR 5VDC PIR Motion Sensor HC-SR501
US$4.19
This Module is a simple Passive Infrared Sensor that are commonly found and used for motion detectors.  The module operates from 4.5vdc to 20vdc, allowing users to use directly with a microcontroller or connect to a load and act as a switch.
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TCRT5000 REFLECTIVE OPTICAL SENSOR
TCRT5000 REFLECTIVE OPTICAL SENSOR
US$1.39

This has a compact construction where the emitting-light source and the detector are arranged in the same direction to sense the presence of an object by using the reflective IR beam from the object.

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A3144 HALL EFFECT SENSOR
A3144 HALL EFFECT SENSOR
US$2.37
This is an integrated Hall effect nonlatching sensor.
Delivery within 2-3 weeks
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SEN0127N Analog Gas Sensor(MQ2)
SEN0127N Analog Gas Sensor(MQ2)
US$12.53
This is used in gas leakage detecting equipments in consumer and industry markets, this sensor is suitable for detecting LPG, i-butane, propane, methane, alcohol, Hydrogen, smoke.
Delivery within 2-3 weeks
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GP2Y0A41SK0F SHARP Infrared Distance Sensor (4-30cm)
GP2Y0A41SK0F SHARP Infrared Distance Sensor (4-30cm)
US$16.73

This is great for sensing objects up to 30 cm away. This has an analog output which varies from 3.1V (4cm) to 0.3V (30cm) with a supply voltage between 4.5 and 5.5V DC. It has a Japanese Solderless Terminal (JST) Connector which is compatible with our JST accessories.

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SEN-11824 Barometric Pressure Sensor - BMP180 Breakout
SEN-11824 Barometric Pressure Sensor - BMP180 Breakout
US$13.93
This is a breakout board for the Bosch BMP180 high-precision, low-power digital barometer. The BMP180 offers a pressure measuring range of 300 to 1100 hPa with an accuracy down to 0.02 hPa in advanced resolution mode.
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DFR0024-N 18B20 Temerature Sensor (Arduino Compatible)
DFR0024-N 18B20 Temerature Sensor (Arduino Compatible)
US$9.75
Its ultra-small size, low hardware overhead, strong anti-interference capability and high accuracy, together with other additional features makes DS18B20 even more popular among users. This is a good start for learning and developing temperature-dependent prototypes.
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DFR0066 SHT1x Humidity and Temperature Sensor
DFR0066 SHT1x Humidity and Temperature Sensor
US$19.95
Accuracy, durable, compatibility and easy to use, it has all the attributes of a superior sensor. This sensor uses SHT1x sensor.  SHT1x is individually calibrated in a precision humidity chamber. The calibration coefficients are programmed into an OTP memory on the chip. 
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SEN0147 Smart Grayscale Sensor
SEN0147 Smart Grayscale Sensor
US$13.93
Beyond recognizing two specific colors or output through digital or analog only, the smart gray sensor has integrated both digital and analog output modes.
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DFR0026 Analog Ambient Light Sensor
DFR0026 Analog Ambient Light Sensor
US$8.33
This module help you to detect the light density and reflect the analog voltage signal back to Arduino controller. You can set the threshold of voltage level to trig other unit on Arduino project. 
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SEN-11931 Digital Temperature Sensor Breakout - TMP102
SEN-11931 Digital Temperature Sensor Breakout - TMP102
US$8.33

This is for the incredibly small TMP102 digital temperature sensor. The TMP102 is a digital sensor (I2C a.k.a. TWI), has a resolution of 0.0625°C, and is accurate up to 0.5°C. This is a very handy sensor that requires a very low-current.

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PCD-CAM Web Cam 3-axis Servo Kit for Real Time Video for pcDuino
PCD-CAM Web Cam 3-axis Servo Kit for Real Time Video for pcDuino
US$41.93

This allows you to build a complete webcam servo for the pcDUINO or pcDUINOv2. This a kit that includes web cam, 2 mini servo, and a servo fixture to assemble a complete web cam servo.

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SEN-11769 RedBot Sensor - Line Follower
SEN-11769 RedBot Sensor - Line Follower
US$6.13
This is an add-on for your RedBot that gives your robot the ability to detect lines or nearby objects. The sensor works by detecting reflected light coming from its own infrared LED.
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SEN0148 Digital Temperature & humidity sensor (With Stainless Steel Probe)
SEN0148 Digital Temperature & humidity sensor (With Stainless Steel Probe)
US$56.25

This is an anti-rust, robust and precise SHT1x sensor, which can master enterprise-class and industrial-level applications. It can be applied in various fields: telepoint base stations, electronic control cabinet, production site, storehouse, machine rooms, greenhouses, animal farming, medicine stock and etc.

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SEN-11862 RFID Reader ID-3LA (125 kHz)
SEN-11862 RFID Reader ID-3LA (125 kHz)
US$38.06
RFID (radio-frequency identification) is the wireless non-contact use of radio-frequency electromagnetic fields, for the purposes of identifying and tracking tags attached to objects. This is the ID-3LA, a very simple to use RFID reader module from ID Innovations. With a built in antenna, the only holdup is the 2mm pin spacing.
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