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Humidity and Temperature Sensor - RHT03
Price: $17.96
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Sparkfun Item #: SEN-10167 -

The RHT03 (also known by 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. Get Started with the RHT03 Guide Features: 3.3-6V Input 1-1.5mA measuring current 40-50 uA standby current Humidity from 0-100% RH -40 - 80 degrees C temperature range +-2% RH accuracy +-0.5 degrees C Documents: Hookup Guide Arduino Example ESP8266...

Infrared Thermometer - MLX90614
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Price: $64.93
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Sparkfun Item #: 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 movement detection. The MLX90614 provides two methods of output: PWM and SMBus (i.e. TWI, I2C). The 10-bit PWM output provides a resolution of 0.14°C, while the TWI interface has a resolution of 0.02°C. The MLX90614 is...

LilyPad Temperature Sensor
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Price: $7.50
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Sparkfun Item #: DEV-08777 -

Detecting temperature changes has never been easier. The MCP9700 is a small thermistor type temperature sensor. This sensor will output 0.5V at 0 degrees C, 0.75V at 25 C, and 10mV per degree C. Doing an analog to digital conversion on the signal line will allow you to establish the local ambient temperature. Detect physical touch based on body heat and ambient conditions with this small sensor. LilyPad is a wearable e-textile technology developed by Leah Buechley and cooperatively designed by...

Non-Contact Infrared Thermometer
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Price: $46.61
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Sparkfun Item #: TOL-10830 -

This non-contact infrared thermometer makes it a breeze to take quick and accurate surface temperature readings without getting too close for comfort. Laser sighting ensures that you're pointing at the right spot: Simply pull the trigger and line up the laser dot where you want to measure the temperature. The temp gun also has adjustable emissivity compensation for measuring the surface temp of more or less radiant objects. Features: Single-Spot Laser Sighting Adjustable Emissivity...

One Wire Digital Temperature Sensor - DS18B20
Price: $7.13
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Sparkfun Item #: SEN-00245 -

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 temperature control projects. Features: Unique 1-Wire® interface requires only one port pin for communication Each device has a unique 64-bit serial...

One-Wire Ambient Temperature Sensor - MAX31820
Price: $3.52
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Sparkfun Item #: SEN-14049 -

The MAX31820 ambient temperature sensor provides 9-bit to 12-bit Celsius temperature measurements with ±0.5°C accuracy over a +10°C to +45°C temperature range. Over its entire -55°C to +125°C operating range, the device has ±2.0°C accuracy. The device communicates over a one-wire bus that, by definition, requires only one data line (and ground) for communication with a central microprocessor. In addition, the device can derive power directly from the data line, eliminating the need for an...

Particulate Matter Sensor - SPS30
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Price: $80.21
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Sparkfun Item #: SEN-15103 -

The Sensirion Particulate Matter Sensor SPS30 is a compact, high quality, optical particle sensor that uses laser scattering and Sensirion's innovative contamination resistance technology to achieve superior binning and particle measurement. This sensor allows users to measure mass concentration and number of particles of 1 µg/m^3, 2.5 µg/m^3, 4 µg/m^3, and 10 µg/m^3. The compact form factor, measuring just under 41mm x 41mm x 12mm, combined with a sensor lifetime over 8 years and a self...

Qwiic PT100 - ADS122C04
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Price: $64.93
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Sparkfun Item #: SPX-16770 -

Do you need to measure temperature accurately and reliably? This could be the perfect solution! The SparkX Qwiic PT100 is based on the ADS122C04 24-bit ADC and is perfect for measuring temperature with a 100 Ohm Platinum Resistance Thermometer (PRT). PRT sensors use a thin strip of platinum to measure temperature. The resistance changes with temperature according to the laws of physics and remember “Ye cannae change the laws of physics”! By passing a small (1mA) current through the PRT, the...

SparkFun Digital Temperature Sensor - TMP102 (Qwiic)
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Price: $10.01
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Sparkfun Item #: SEN-16304 -

We all like to know the temperature, right? Well, with the SparkFun TMP102 Digital Temperature Sensor, we've made it just about as easy as it gets. Based on the original Digital Temperature Sensor Breakout - TMP102, we've added Qwiic connectors to bring this board into our plug-and-play Qwiic Ecosystem and added an address jumper instead of breaking out the address pin. However, we still have broken out 0.1"-spaced pins in case you prefer to use a breadboard. The TMP102 itself is an...

SparkFun Digital Temperature Sensor Breakout - TMP102
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Price: $8.76
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Sparkfun Item #: SEN-13314 -

The TMP102 is an easy-to-use digital temperature sensor from Texas Instruments. The TMP102 breakout allows you to easily incorporate the digital temperature sensor into your project. While some temperature sensors use an analog voltage to represent the temperature, the TMP102 uses the I2C bus of the Arduino to communicate the temperature. Needless to say, this is a very handy sensor that doesn't require much setup. The TMP102 is capable of reading temperatures to a resolution of 0.0625°C, and...

SparkFun gator:starter ProtoSnap
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Price: $16.59
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Sparkfun Item #: SEN-14891 -

The SparkFun gator:starter ProtoSnap is one of a series of gator-clippable accessories called gator:boards that have been created to directly interface with the micro:bit or to other micro controllers! The gator:starter ProtoSnap provides you with a starting point to go beyond the capabilities of the micro:bit, with three different boards that can be kept as a whole or broken apart for individual use! Included on each gator:starter is a temperature sensor board, a light sensor board and an RGB...

SparkFun High Precision Temperature Sensor - TMP117 (Qwiic)
Price: $23.26
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Sparkfun Item #: SEN-15805 -

The SparkFun Qwiic TMP117 breakout is a high precision temperature sensor equipped with an I2C interface. It outputs temperature readings with high precision of ±0.1°C across the temperature range of -20°C to +50°Cs with no calibration and a maximum range from -55°C to 150°C. The SparkFun High Precision Temperature Sensor also has a very low power consumption rate which minimizes the impact of self-heating on measurement accuracy. Utilizing our handy Qwiic system, no soldering is required to...

SparkFun IR Thermometer Evaluation Board - MLX90614
Price: $58.28
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Sparkfun Item #: SEN-10740 -

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 optional SMBus (two-wire) or PWM interface. The ATMega328 comes with demo code that gives a temperature readout in degrees F at 38400bps. You can use a 3.3V FTDI Basic to...

SparkFun Qwiic Thermocouple Amplifier - MCP9600 (PCC Connector)
Price: $41.61
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Sparkfun Item #: SEN-16294 -

The MCP9600 Breakout is a high accuracy Thermocouple Amplifier equipped with an I2C interface, accessed over our Qwiic system. Inside the chip are two temperature sensors, one for the thermocouple itself (the hot junction) and one for the chip itself (the cold junction). As a result, the MCP9600 can read both the ambient temperature and the temperature of whatever you're trying to measure! The MCP9600 can do both with a resolution of 0.0625°C, and an accuracy of ±1.5°C (worst-case). The...

SparkFun Qwiic Thermocouple Amplifier - MCP9600 (Screw Terminals)
Price: $33.27
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Sparkfun Item #: SEN-16295 -

The MCP9600 Breakout is a high accuracy Thermocouple Amplifier equipped with an I2C interface, accessed over our Qwiic system. Inside the chip are two temperature sensors, one for the thermocouple itself (the hot junction) and one for the chip itself (the cold junction). As a result, the MCP9600 can read both the ambient temperature and the temperature of whatever you're trying to measure! The MCP9600 can do both with a resolution of 0.0625°C, and an accuracy of ±1.5°C (worst-case). The...

SparkFun Thermocouple Breakout - MAX31855K
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Price: $26.60
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Sparkfun Item #: SEN-13266 -

The SparkFun MAX31855K Thermocouple Breakout is a simple 14-bit resolution, SPI-compatible, serial interface thermocouple digitizer that makes reading a wide range of temperatures possible. A thermocouple works by taking two wires made of dissimilar metals, connecting them at the two ends, and making a temperature gradient between one end and the other (a 'hot' end and a 'cold' one). Once this is achieved, a voltage potential is formed and current flows. The SparkFun Thermocouple Breakout...

Temperature Sensor - TMP36
Price: $2.71
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Sparkfun Item #: 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 typical accuracies of ±1°C at +25°C and ±2°C over the −40°C to +125°C temperature range. We like it because it's so easy to use: Just give the device a ground and 2.7 to 5.5 VDC and read the...

Temperature Sensor - Waterproof (DS18B20)
Price: $21.36
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Sparkfun Item #: 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 central microprocessor. Note: The pinout for this sensor is as follows: RED=Vcc BLACK=GND WHITE=SIG Features: 3.0-5.5V input voltage Waterproof -55°C to+125°C temperature range ±0.5°C accuracy from -10°C to...

Thermistor 10K
Price: $1.36
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Sparkfun Item #: SEN-00250 -

10K thermistor with a negative temperature coefficient. Good choice for temp-sensing applications when you need a reliable NTC thermistor. Vishay part #: NTCLE100E3103JB0 Note: You get only one thermistor. **Document: ** Datasheet Bildr Tutorial

Thermocouple Connector - PCC-SMP-K
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Price: $8.76
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Sparkfun Item #: PRT-13612 -

This Thermocouple Connector is perfect for bridging the gap between Type-K thermocouples with standard connectors with a PCB. This little connector is actually the exact part we recommend using with our SparkFun Thermocouple Breakout! Each connector can easily attach to a printed circuit board with its included mounting clip. If you plan on using this connector with a custom PCB make sure to check out the Datasheet in the Documents section below for mounting dimensions. Documents:...

Thermocouple Type-K - Glass Braid Insulated (Bare Wire)
Price: $25.19
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Sparkfun Item #: SEN-00251 -

36" high temperature Type-K Thermocouple with glass braid insulation. Features: Type-K Thermocouple (Ni-Cr) 30 gauge stripped and prepped wires Thermocouple range : -270 to +1372C (-454 to +2501F) Glass braid insulation range : -73 to +482C(-100 to +900F) Yellow + / Red - Works great with our Thermocouple Amplifier AD595 IC!

Thermocouple Type-K - Stainless Steel
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Price: $10.01
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Sparkfun Item #: SEN-13715 -

This is a stainless steel, Type-K Thermocouple probe. A thermocouple works by taking two wires made of dissimilar metals, connecting them at the two ends, and making a temperature gradient between one end and the other (a 'hot' end and a 'cold' one). Once this is achieved, a voltage potential is formed and current flows. One junction is held in the environment where the temperature of interest exists, this is known as the hot junction. The other junction, referred to as the cold junction, can...