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Price: $2.49 USD
The QTR-1A reflectance sensor carries a single infrared LED and phototransistor pair in an inexpensive, tiny 0.5" x 0.3" module that can be … Read more
Price: $0.85 USD

 Collected by one member
This single-pole, double-throw (SPDT) switch can be used as a general-purpose micro switch or tactile bump sensor for your robot. The switch body dimension is … Read more
Price: $2.49 USD
The QTR-1RC reflectance sensor carries a single infrared LED and phototransistor pair in an inexpensive, tiny 0.5" x 0.3" module that can be … Read more
Price: $14.95 USD
This sensor module has 8 IR LED/phototransistor pairs mounted on a 0.375" pitch, making it a great detector for a line-following robot. Pairs of LEDs are … Read more
Price: $19.95 USD
Learn about electronic motion detectors with this deluxe kit that includes a high-quality enclosure with a mounting bracket. The motion detector makes a loud, … Read more
Price: $27.95 USD
The Pololu IR beacon is a compact board that is used in pairs to allow robots to locate each other. Each board has infrared emitters that shine in all directions … Read more
Price: $49.95 USD

 Collected by one member
The Pololu IR beacon is a compact board that is used in pairs to allow robots to locate each other. Each board has infrared emitters that shine in all directions … Read more
Price: $14.95 USD
The IR beacon development board is just an assembled IR Beacon PCB with no IR sensors or firmware. This item is intended for advanced users who want to customize … Read more
Price: $2.5 USD
This is the IR receiver used in the Pololu IR Beacon. This sensor family features a wide operating voltage range and allows for relatively high data rates; this … Read more
Price: $19.95 USD
The Melexis MLX90614ESF-AAA is a high-accuracy, high-resolution, non-contact thermometer with a 90-degree field of view. It has a measurement resolution of … Read more
Price: $1.5 USD
Three pin JST connector with red, black, and yellow colored wire. 5 inches of wire length, perfect for interfacing SHARP analog Infrared sensors to your project. Read more
Price: $0.45 USD
This 5mm Water-clear Phototransistor will pick up visible and infrared light and conduct current. When light reaches this high sensitive/fast response time … Read more
Price: $11.95 USD
The GP2Y0A21 Sharp distance sensor is a great way to add obstacle avoidance or motion sensing to your robot or any other project. With a detection range of … Read more
Price: $7.25 USD
This is a simple-to-use Carbon Monoxide (CO) sensor, suitable for sensing CO concentrations in the air. The MQ-7 can detect CO concentrations anywhere from 20 to … Read more
Price: $16.95 USD

 Collected by one member
This SparkFun breakout board houses the Honeywell's HIH-4030 humidity sensor. The HIH-4030 measures relative humidity (%RH) and delivers it as an analog output … Read more
Price: $0.95 USD
Small electret microphone. Useful in acoustic and audio applications, voice recordings. Read more
Price: $14.95 USD
The Sharp line of analog infra-red rangefinders are rare in the wild, and but make excellent distance measuring units when you can find them. Luckily Solarbotics … Read more
Price: $10.48 USD
The IR Distance Sensor is designed to interface the Sharp GP2D12 sensor to the PhidgetInterfaceKit 8/8/8 or the PhidgetTextLCD. Read more
Price: $58.95 USD
The Devantech SRF08 is the advanced model of Ultrasonic distance rangers available, with excellent width-of-field detection, I2C interface, and light-intensity … Read more
Price: $27.45 USD
The MaxSonar-EZ0 is a very tight-packaged, high-sensitivity single-element sonar module. Much like the very popular EZ1 module, the EZ0 offers higher sensitivity … Read more