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DHT11 Temperature & Humidity Sensor
Price: $4.14
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Elecrow Item #: EL-STH01101S -

    This DHT11 Temperature & Humidity Sensor features a temperature & humidity sensor complex with a calibrated digital signal output. By using the exclusive digital-signal-acquisition technique and temperature & humidity sensing technology, it ensures high reliability and excellent long-term stability. This sensor includes a resistive-type humidity measurement component and an NTC temperature measurement component, and connects to a high-performance 8-bit...

DHT11 Temperature and Humidity Sensor
Price: $8.96
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DFRobot Item #: DFR0067 -

DHT11 Temperature and Humidity Sensor This DHT11 Temperature and Humidity Sensor features a calibrated digital signal output with the temperature and humidity sensor complex. Its technology ensures the high reliability and excellent long-term stability. A high-performance 8-bit microcontroller is connected. This sensor includes a resistive element and a sense of wet NTC temperature measuring devices. It has excellent quality, fast response, anti-interference ability and high cost performance...

DHT22 Temperature and Humidity Sensor
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Price: $16.38
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DFRobot Item #: SEN0137 -

DHT22 capacitive humidity sensing digital temperature and humidity module is one that contains the compound has been calibrated digital signal output of the temperature and humidity sensors. Application of a dedicated digital modules collection technology and the temperature and humidity sensing technology, to ensure that the product has high reliability and excellent long-term stability.The sensor includes a capacitive sensor wet components and a high-precision temperature measurement...

Digital Temperature &; humidity sensor (With Stainless Steel Probe)
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Price: $50.85
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DFRobot Item #: SEN0148 -

This is an anti-rust, robust and precise SHT10 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. Metallic package enables it to deal with the very dusty or other severe circumstance. the wall-hanging style makes it easy to install. The metallic mesh covering the sensor adopts method...

DS18B20 Temperature Sensor
Price: $3.97
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Elecrow Item #: EL-STH18201S -

    This is the latest DS18B20 1-Wire digital temperature sensor from Dallas. The DS18B20 Digital Thermometer provides 9 to 12-bit (configurable) temperature readings which indicate the temperature of the device.     Because each DS18B20 contains a unique silicon serial number, multiple DS18B20s can exist on the same 1-Wire bus. This allows for placing temperature sensors in many different places. Applications where this feature is useful include HVAC...

Gravity: 27 Pcs Sensor Kit for Arduino
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Price: $129.29
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DFRobot Item #: KIT0011 -

If you want to start playing with sensors, this sensor kit for arduino will be the perfect choice for you to get started. It comes with bundle of the most popular DFRobot sensors such as light sensors, gas sensors, sound sensors, touch sensors, distance sensor, accelerometer and lots more which gives unlimited possibility to sense the physical world on your embedded devices. The wiki for these sensors and devices makes it easy to start learning. So save by purchasing them together and start...

Gravity: Analog Flame Sensor For Arduino
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Price: $6.90
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DFRobot Item #: DFR0076 -

This Arduino flame sensor can be used to detect fire or other wavelength at 760 nm ~ 1100 nm light. In the fire-fighting robot game, the flame plays an important role in the probe, which can be used as the robot's eyes to find fire source or football. It can make use of fire-fighting robots, soccer robots. The Flame sensor has probe angle of 60 degrees, two M3 mounting holes is provided to install on various platforms. This arduino flame sensor's operating temperature is -25 degrees Celsius to...

Gravity: Analog High Temperature Sensor
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Price: $23.96
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DFRobot Item #: SEN0198 -

What sensor should you use when you need to measure temperature? Most people will think of a DS18B20 temperature sensor first, but this sensor is only capable of measuring temperatures up to 125C. In order to measure temperatures greater than 100C you will need something with a greater temperature range and resistance. This is the sensor you need! We have used a PT100 resistance type high temperature probe which is often used in industrial applications. Using this probe you can measure a...

Gravity: Analog LM35 Temperature Sensor For Arduino
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Price: $7.76
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DFRobot Item #: DFR0023 -

This is an Arduino Temperature Sensor based on LM35 temperature chip. A Temperature Sensor can be used to detect ambient air temperature.The LM35 chip is produced by National Semiconductor Corporation and offers a functional range between 0 degree Celsius to 100 degree Celsius with a sensitivity of 10mV per degree Celsius. The output voltage is proportional to the temperature.It is commonly used as a temperature measurement sensors. It includes thermocouples, platinum resistance, thermal...

Gravity: DS18B20 Temperature Sensor  (Arduino Compatible)
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Price: $6.90
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DFRobot Item #: DFR0024 -

While there are many types of temperature sensors available in the market, the DS18B20 arduino Temperature Sensor form DALLAS is the best choice in applications which require high accuracy and high reliability. 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. For electronic enthusiasts and hobbyists, the DS18B20 is a good start for learning and developing...

Humidity and Temperature Sensor - RHT03
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Price: $12.77
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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. 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: Datasheet Example Code GitHub " ...

Humidity and Temperature Sensor - SHT15 Breakout
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Price: $48.24
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Sparkfun Item #: SEN-08257 -

Humidity and Temperature Sensor - SHT15 BreakoutThis is a simple breakout board for the SHT15 humidity sensor from Sensirion. The SHT15 digital humidity and temperature sensor is fully calibrated and offers high precision and excellent long-term stability at low cost. The digital CMOSens Technology integrates two sensors and readout circuitry on one single chip. These sensors are really impressive! Very sensitive and straight forward to use. Board comes assembled and tested with the...

Infrared Thermometer - MLX90614
Price: $22.94
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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....

Infrared Thermometer Module
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Price: $84.47
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DFRobot Item #: SEN0093 -

The TNm infrared thermometer module is is a long distance thermometer specially designed for a high sensitivity, high accuracy,low noise and low power consumption. MEMS thermopile detector and a high accurate ambient temperature compensation technique are used for the TNm infrared thermometer module.|Specification| Operating Voltage: 3V or 5V Measurement Range: -33~220&;deg;C / -27~428&;deg;F Operating Range: -10~50&;deg;C / 14~122&;deg;F Accuracy Tobj=15~35&;deg;C, Tamb=25&;deg;C :...

One Wire Digital Temperature Sensor - DS18B20
Price: $4.54
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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...

One-Wire Ambient Temperature Sensor - MAX31820
Price: $2.55
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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...

SHT20 I2C Temperature &; Humidity Sensor (Waterproof Probe)
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Price: $38.79
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DFRobot Item #: SEN0227 -

This SHT20 I2C temperature & humidity sensor is equipped with waterproof probe. It comes with the 4C CMOSens® SHT20 temperature & humidity sensor chip and the probe has gone through dual waterproof protection test.The SHT20 I2C temperature & humidity sensor adopt Sensirion techniques. Except the humidity sensor of capacitive type and the temperature sensor of band gap , SHT20 contains an amplifier, A/D converter, OTP memory and a digital processing unit. Compared with early SHT1x series...

SparkFun Atmospheric Sensor Breakout - BME280
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Price: $23.83
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Sparkfun Item #: SEN-13676 -

"The SparkFun BME280 Atmospheric Sensor Breakout is the easy way to measure barometric pressure, humidity, and temperature readings all without taking up too much space. Basically, anything you need to know about atmospheric conditions you can find out from this tiny breakout. The BME280 Breakout has been design to be used in indoor/outdoor navigation, weather forecasting, home automation, and even personal health and wellness monitoring. The on-board BME280 sensor measures atmospheric...

SparkFun Barometric Pressure Sensor Breakout - BMP180
Price: $11.44
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Sparkfun Item #: SEN-11824 -

"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. It’s based on piezo-resistive technology for high accuracy, ruggedness and long term stability. These come factory-calibrated, with the calibration coefficients already stored in ROM. What makes this sensor great is that it is nearly identical to its former rev, the...

SparkFun Barometric Sensor Breakout - T5403
Price: $17.19
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Sparkfun Item #: SEN-12039 -

"This is the T5403 breakout board, a fully calibrated barometric pressure sensor with an I2C interface. The T5403 sensor measures the absolute pressure of the air around. This pressure varies with both the weather and altitude. Depending on how you interpret the data, you can monitor changes in the weather, measure altitude, or any other tasks that require an accurate pressure reading. The T5403 sensor consists of a piezoresistive MEMS pressure sensor element and an ASIC (application specific...

SparkFun Digital Temperature Sensor Breakout - TMP102
Price: $6.84
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Sparkfun Item #: SEN-11931 -

"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-board voltage regulator, so supplied voltage should be between 1.4 to 3.6VDC. Filtering capacitors and pull-up resistors are included as...

SparkFun Digital Temperature Sensor Breakout - TMP102
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Price: $6.84
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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...

SparkFun Environmental Combo Breakout - CCS811/BME280 (Qwiic)
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Price: $48.08
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Sparkfun Item #: SEN-14348 -

"The SparkFun CCS811/BME280 Environmental Combo Breakout takes care of all your atmospheric-quality sensing needs with the popular CCS811 and BME280 ICs. This unique breakout provides a variety of environmental data, including barometric pressure, humidity, temperature, TVOCs and equivalent CO2 (or eCO2) levels. To make it even easier to use this breakout, all communication is enacted exclusively via I2C, utilizing our handy Qwiic system. However, we still have broken out 0.1" spaced pins in...

SparkFun ESP32 Thing Environment Sensor Shield
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Price: $78.29
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Sparkfun Item #: DEV-14153 -

"The SparkFun ESP32 Thing Environment Sensor Shield provides sensors and hookups for monitoring environmental conditions. While incorporating three sensors capable of measuring five different environmental variables as well as providing connections for several other sensors, this sensor shield creates the best way to make your ESP32 Thing more accurate than your local weatherman! By simply soldering on a few headers as well as an optional 3-pin screw terminal, your ESP32 Thing Environment...

SparkFun H2OhNo! ATtiny Dev Board / Water Alarm
Price: $13.74
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Sparkfun Item #: DEV-12069 -

"The SparkFun H2OhNo! is a water sensor alarm kit that you build yourself. When water is detected across the sense pins an alarm goes off and an LED starts blinking. If you’ve ever had a water heater explode or tried to create submersible electronics you know how important it is to be able to detect when water is around! Underneath the default function of H2OhNo! is a small but powerful development board for the ATtiny85 microcontroller. The board includes a buzzer, LED, a coin cell...

SparkFun Humidity and Temperature Sensor Breakout - HIH6130
Price: $34.44
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Sparkfun Item #: SEN-11295 -

"It’s not the heat but the humidity that gets you, at least that’s what they say. Really, both are important, what you need is a sensor that combines humidity and temperature readings. How about this Honeywell HumidIcon Digital Humidity/Temperature Sensor? The HIH6130 is a digital output-type relative humidity (RH) and temperature sensor combined in the same package. This allows the RH measurement to be temperature compensated and provides a second, standalone temperature sensor...

SparkFun Humidity and Temperature Sensor Breakout - SHT15
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Price: $48.24
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Sparkfun Item #: SEN-13683 -

"The SHT15 Breakout is an easy to use, highly accurate, digital temperature and humidity sensor. This board has been fully calibrated and offers high precision and excellent long-term stability at low cost. The digital CMOSens® technology integrates two sensors and readout circuitry on one single chip. All you need is two lines for 2-wire communication, and you’ll have relative humidity and temperature readings to help you sense the world around you! The two sensors built into the...

SparkFun Humidity and Temperature Sensor Breakout - Si7021
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Price: $9.14
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Sparkfun Item #: SEN-13763 -

"The Si7021 is a low-cost, easy-to-use, highly accurate, digital humidity and temperature sensor. This sensor is ideal for environmental sensing and data logging and perfect for build a weather stations or humidor control system. All you need are two lines for I2C communication, and you’ll have relative humidity readings and very accurate temperature readings as a bonus! There are only four pins that need to be hooked up in order to start using this sensor in a project. One for VCC, one...

SparkFun Humidity Sensor Breakout - HIH-4030
Price: $22.55
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Sparkfun Item #: SEN-09569 -

"This is a breakout board for Honeywell’s HIH-4030 humidity sensor. The HIH-4030 measures relative humidity (%RH) and delivers it as an analog output voltage. You can connect the output of the sensor directly to an ADC on a microcontroller; and, thanks to the sensor’s near linear voltage output, the data is very easy to process. Voltage applied to the supply pins should be within 4-5.8VDC, and optimally at 5V. The sensor will typically only consume about 200μA. This product...

SparkFun Infrared Temperature Breakout - TMP006
Price: $17.19
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Sparkfun Item #: SEN-11859 -

"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 of -40°C to 125°C and an optimal operating voltage of 3.3V to 5V (tolerant up to 7V max). This breakout works great with most micro...

SparkFun IR Thermometer Evaluation Board - MLX90614
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Price: $57.44
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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 Photon Weather Shield
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Price: $41.70
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Sparkfun Item #: DEV-13674 -

"The SparkFun Photon Weather Shield is an easy-to-use add-on board that grants you access to barometric pressure, relative humidity, and temperature. There are also connections on this shield to optional sensors such as wind speed, direction, rain gauge and soil readings! These Weather Shields utilize the Si7021 temperature/humidity and MPL3115A2 barometric pressure sensors. Each shield comes with two RJ11 connectors (for optional hookup of rain and wind sensors) and a 3-pin soil temperature...

SparkFun Weather Shield
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Price: $45.94
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Sparkfun Item #: DEV-13956 -

"The SparkFun Weather Shield is an easy-to-use Arduino shield that grants you access to barometric pressure, relative humidity, luminosity and temperature. There are also connections on this shield to optional sensors such as wind speed, direction, rain gauge and GPS for location and super accurate timing. The Weather Shield utilizes the Si7021 humidity/temperature sensor, the MPL3115A2 barometric pressure sensor and the ALS-PT19 light sensor. The shield relies on the Si7021 and MPL3115A2...

SparkFun Weather Shield
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Sparkfun Item #: DEV-12081 -

"The Weather Shield is an easy to use Arduino shield that grants you access to barometric pressure, relative humidity, luminosity and temperature. There are also connections on this shield to optional sensors such as wind speed, direction, rain gauge and GPS for location and super accurate timing. These Weather Shields utilize the HTU21D humidity, MPL3115A2 barometric pressure, and ALS-PT19 light sensors and relies on the HTU21D and MPL3115A2 Arduino libraries. Each shield comes with two...

Temperature & Humidity Sensor Pro(AM2302)
Price: $16.22
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Elecrow Item #: EL-SES23031S -

    This AM2302 temperature and humidity sensor also called DHT22 which is a high accuracy temperature and humidity sensor used in home conditions. It consists of a capacitive sensor element used for measuring relative humidity and a negative temperature coefficient (NTC) thermistor used for measuring temperature. Each sensor was calibrated in an accurate humidity room. Small dimension, ultra low power consumption, more than 20m's signal transmission distance make it a good...

Temperature Controlled Relay Module
Price: $9.93
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Elecrow Item #: EL-SES10010S -

    This is a temprature controlled relay, you can set the relay on/off when the temprature is higher/lower than the temprature you set.The peak voltage capability is up to 250V at 10A when AC and 30V at 10A when DC. With this module, it will be much more easyto implement applications that needs auto power up/down with the temprature varies.     Adjust the on-board potentiometer to adjust the sensitivity. The relay and the signal indicate LED would...

Temperature Sensor - TMP36
Price: $1.73
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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...

Temperature Sensor - Waterproof (DS18B20)
Price: $14.89
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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. Dimensions: Probe is 7mm in diameter and roughly 26mm long. Overall length (including wire) is 6 feet. Features: 3.0-5.5V input voltage Waterproof -55°C to+125°C temperature...

Thermistor 10K
Price: $0.86
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Sparkfun Item #: SEN-00250 -

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

Thermocouple Connector - PCC-SMP-K
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Price: $5.96
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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 it’s 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: $18.72
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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: $6.81
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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...

Vernier Sensor -  Gas Pressure Sensor
Price: $141.18
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Sparkfun Item #: SEN-12874 -

"This is the Vernier Gas Pressure Sensor, an easy to operate tool that can be used to monitor pressure changes of a gaseous element. The range on this Vernier sensor is wide enough to perform pressure vs. volume (Boyle’s law) experiments yet it is sensitive enough to conduct vapor-pressure or pressure-temperature experiments. These Gas Pressure Sensors offer the user to test in a pressure range of 0 to 2.1 atm (0 to 210 kPa) to a max of 4 atm. Driving this sensor is the Honeywell...

Vernier Sensor - Stainless Steel Temperature Probe
Price: $49.27
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Sparkfun Item #: SEN-12871 -

"This is the Stainless Steel Temperature Probe, a tough little Vernier Sensor that can be used to measure the temperature of organic liquids and even salt solutions, acids, and bases (just don’t mix the last two). This sensor probe can be used the same as almost any other thermometer for experiments and in a multitude of fields like chemistry, biology, earth science, and more. Each sensor probe has a temperature range of -40 to 135°C (–40 to 275°F). Make sure not to use...

Waterproof DS18B20 Digital Temperature Sensor for Arduino
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Price: $11.89
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DFRobot Item #: DFR0198 -

This is a waterproofed version of the DS18B20 Temperature sensor. Handy for when you need to measure something far away, or in wet conditions. While the sensor is good up to 125°C the cable is jacketed in PVC so we suggest keeping it under 100°C. Because they are digital, you don't get any signal degradation even over long distances! 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...

Weather Meters
Price: $88.49
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Sparkfun Item #: SEN-08942 -

"Whether you’re an agriculturalist, a professional meteorologist or a weather hobbyist, building your own weather station can be a really rewarding project. When you’re measuring weather, however, you need some pretty specialized sensors. This kit represents the three core components of weather measurement: wind speed, wind direction and rainfall. None of the sensors in this kit contain active electronics, instead they use sealed magnetic reed switches and magnets so you’ll...