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 Sparkfun products range from things like resistors and LEDs to humidity sensors and LCD screens.  Including: Books, Cables, Cellular, Components, Development Tools, E-Textiles, GPS, Kits, LCDs, Programmers, Prototyping, Sensor, Tools, Robotics, Wireless

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    One Wire Digital Temperature Sensor - DS18B20 One Wire Digital Temperature Sensor - DS18B20 This is the latest DS18B20 1-Wire digital temperature sensor from Maxim IC. Reports degrees C with 9 to 12-bit precision, -55C to 125C (+/-0.5C). Each sensor has a unique 64-Bit Serial number etched into it - allows for a huge number of sensors to be used on one data bus. This is a wonderful part that is the corner stone of many data-logging and... $4.78

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    Humidity and Temperature Sensor - DHT22 Humidity and Temperature Sensor - DHT22 The DHT-22 is a low cost humidity and temperature sensor with a single wire digital interface. The sensor is calibrated and doesn't require extra components so you can get right to measuring relative humidity and temperature.Features:3.3-6V Input1-1.5mA measuring current40-50 uA standby currentHumidity from 0-100% RH-40 - 80 degrees C temperatur... $10.50

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    TMP36 - Temperature Sensor TMP36 - Temperature Sensor  TMP36 - Temperature Sensorsku: SEN-10988    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 output that is linearly proportional to the Celsius temperature. It also doesn't require any external calibration to provide t... $1.50
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    Temperature Sensor - Waterproof (DS18B20) Temperature Sensor - Waterproof (DS18B20)  Temperature Sensor - Waterproof (DS18B20)sku: SEN-11050  This sealed digital temperature probe lets you precisely measure temperatures in wet environments with a simple 1-Wire interface. The DS18B20 provides 9 to 12-bit (configurable) temperature readings over a 1-Wire interface, so that only one wire (and ground) needs to be connected from a c... $14.95

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    Digital Temperature Sensor Breakout - TMP102 Digital Temperature Sensor Breakout - TMP102 This is a breakout board 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. The sensor requires very low-current, and is loaded with features. Communication with the TMP102 is achieved through a two-wire se... $3.95
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    Temperature Sensor - LM335A Temperature Sensor - LM335A The LM335A is a very easy-to-use analog temperature sensor. The LM335A works like a Zener diode with a breakdown voltage proportional to absolute temperature at 10mV/°K. Hook up a resistor from 5V and GND, and the LM335A will output an analog voltage of 2.98V (298 Kelvin is 25C or room temperature).  The output of the sensor is li... $1.65
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    Thermistor 10K Thermistor 10K 10K thermistor with a negative temperature coefficient.  Good choice for temp-sensing aplications.Vishay part #: NTCLE100E3103JB0Document: Datasheet $1.95

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    Infrared Thermometer - MLX90614 Infrared Thermometer - MLX90614 Infrared Thermometer - MLX90614 SEN-09570    Melexis' MLX90614ESF-BAA is an infrared thermometer designed for non-contact temperature sensing. An internal 17-bit ADC and a powerful DSP contribute to the MLX90614's high accuracy and resolution. It has a huge number of applications including body temperature measurment and ... $19.95
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    Pulse Sensor Pulse Sensor  Pulse Sensor SEN-11574 Heart rate data can be really useful whether you're designing an exercise routine, studying your activity or anxiety levels or just want your shirt to blink with your heart beat. The problem is that heart rate can be difficult to measure. Luckily, the Pulse Sensor Amped can solve that problem!The Pulse Sensor Amped is a p... $28.50
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    Thermocouple Type-K Glass Braid Insulated Thermocouple Type-K Glass Braid Insulated 36" high temperature Type-K Thermocouple with glass braid insulation.Check out this really neat tutorial using the thermocouple, MAX6675, and FT232 for control. Nice work Michael!Features:Type-K Thermocouple (Ni-Cr)30 gauge stripped and prepped wiresThermocouple range : -270 to +1372C (-454 to +2501F)Glass braid insulation range : -73 to +482C(-... $16.50

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    MPL3115A2 Altitude/Pressure Sensor Breakout MPL3115A2 Altitude/Pressure Sensor Breakout MPL3115A2 Altitude/Pressure Sensor Breakout SEN-11084   Life has its ups and downs, so why not measure them? The MPL3115A2 is a MEMS pressure sensor that provides Altitude data to within 30cm (with oversampling enabled). The sensor outputs are digitized by a high resolution 24-bit ADC and transmitted over I2C, meaning it's eas... $14.95

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    Digital Temperature Sensor Breakout - TMP102 Digital Temperature Sensor Breakout - TMP102 This is a breakout board 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.Communication with the TMP102 is achieved through a two-wire serial interface. There is no on... $5.95

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    TMP006 Breakout TMP006 Breakout This is not your typical temperature sensor. The TMP006 Breakout can measure the temperature of an object without making contact with it. By using a thermopile to detect and absorb the infrared energy an object is emitting, the TMP006 Breakout can determine how hot or cold the object is.The TMP006 Breakout has a wide temperature detection range ... $14.95

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    Evaluation Board for MLX90614 IR Thermometer Evaluation Board for MLX90614 IR Thermometer This is an evaluation board for the MLX90614 IR Thermometer. The sensor is connected to an ATmega328 running at 3.3V with a STK500 (Arduino) 8MHz bootloader. Code can be loaded through the FTDI basic interface and the Arduino environment.. The MLX9061 sensor is a high precision, small size, single zone IR thermometer with an opti... $63.18
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    TempGun Infrared Non-Contact TempGun Infrared Non-Contact This is TempGun, a non-contact infrared thermometer. We needed an accurate tool to calibrate our silicon temperature sensors. Oddly enough, we found these little guys in our backyard (well nearby actually), being used and sold in a reptile supply shop! Just point it at any object and get the surface temperature. Useful for detecting if chipsets ... $45.00
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    TempGun with Laser Sight TempGun with Laser Sight This is TempGun PE2, the next generation non-contact infrared thermometer. Higher accuracy, laser sighting, and a tighter emission profile make this new unit a must have for tighter tolerance measurements. Just point it at any object and get the surface temperature. Remember the days when you couldn't buy a laser pointer for under $100? No... $56.86
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