Environment

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Weather Meter Kit

In stock SEN-15901

Whether you are measuring wind speed, direction or rain, this is the Weather Meter for you.

$64.95

Favorited Favorite 22

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Temperature Sensor - Waterproof (DS18B20)

In stock SEN-11050

This sealed digital temperature probe lets you precisely measure temperatures in wet environments with a simple 1-Wire interf…

$11.95

Favorited Favorite 74

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SparkFun IR Thermometer Evaluation Board - MLX90614

Only 1 left! 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 S…

$34.95

Favorited Favorite 15

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SparkFun Environmental Combo Breakout - CCS811/BME280 (Qwiic)

Only 2 left! SEN-14348

The SparkFun CCS811/BME280 Environmental Combo Breakout takes care of all your atmospheric-quality sensing needs with the pop…

$35.95

Favorited Favorite 50

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SparkFun Atmospheric Sensor Breakout - BME280

Out of stock SEN-13676

The SparkFun BME280 Atmospheric Sensor Breakout is the easy way to measure barometric pressure, humidity, and temperature rea…

$19.95

Favorited Favorite 45

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SparkFun Pressure Sensor Breakout - MS5803-14BA

In stock SEN-12909

This is the MS5803-14BA Pressure Sensor Breakout, a high resolution pressure sensor with both an I2C and SPI interface. This …

$59.95

Favorited Favorite 18

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Particulate Matter Sensor - SPS30

In stock SEN-15103

The Sensirion Particulate Matter Sensor SPS30 is a compact, high quality, optical particle sensor that uses laser scattering …

$46.95

Favorited Favorite 14

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SparkFun Air Quality Breakout - CCS811

In stock SEN-14193

The CCS811 Air Quality Breakout is a digital gas sensor solution that senses a wide range of Total Volatile Organic Compounds…

$20.95

Favorited Favorite 36

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SparkFun Air Quality Sensor - SGP30 (Qwiic)

In stock SEN-16531

The SparkFun SGP30 Air Quality Sensor monitors the VOCs around you and can return valid indoor air quality readings within 15…

$19.95

Favorited Favorite 12

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CO₂ Humidity and Temperature Sensor - SCD30

Out of stock SEN-15112

The SCD30 from Sensirion is a high quality NDIR based CO₂ sensor capable of detecting 400 to 10000ppm with an accuracy of �…

$59.95

Favorited Favorite 22

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SparkFun High Precision Temperature Sensor - TMP117 (Qwiic)

In stock SEN-15805

The SparkFun Qwiic TMP117 Breakout is a high precision temperature sensor equipped with an I2C interface.

$13.95

Favorited Favorite 15

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Low Concentration Ozone Gas Sensor - MQ-131

In stock SEN-17051

The MQ-131 is a low concentration Ozone gas sensor from Winsen. The sensing material for the MQ-131 is WO₃.

$34.95

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SparkFun Environmental Sensor Breakout - BME680 (Qwiic)

In stock SEN-16466

This SparkFun Environmental Sensor is a breakout for the 4-in-1 BME680 gas sensor from Bosch.

$18.95

Favorited Favorite 11

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SparkFun Qwiic MicroPressure Sensor

In stock SEN-16476

The SparkFun Qwiic MicroPressure Sensor is a mini breakout equipped with Honeywell's MPR Series piezoresistive silicon 25psi …

$14.95

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SparkFun Humidity Sensor Breakout - HIH-4030

Only 5 left! SEN-09569

This is a breakout board for Honeywell's HIH-4030 humidity sensor. The HIH-4030 measures relative humidity (%RH) and delivers…

$18.95

Favorited Favorite 19

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SparkFun Atmospheric Sensor Breakout - BME280 (Qwiic)

In stock SEN-15440

The SparkFun BME280 Atmospheric Sensor Breakout is an easy way to measure barometric pressure, humidity, and temperature read…

$14.95

Favorited Favorite 16

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SST Liquid Level Sensor

In stock SEN-13835

The SST Liquid Level Sensor provides single point liquid detection via a TTL compatible push/pull output. This optical liquid…

$24.95

Favorited Favorite 24

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SparkFun Humidity and Temperature Sensor Breakout - Si7021

In stock SEN-13763

The Si7021 is a low-cost, easy-to-use, highly accurate, digital humidity and temperature sensor. This sensor is ideal for env…

$7.95

Favorited Favorite 30

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SparkFun MEMS Microphone Breakout - INMP401 (ADMP401)

23 available BOB-09868

This tiny breakout board features the ADMP401 MEMS microphone. One of the key advantages to this breakout and microphone is t…

$10.95

Favorited Favorite 31

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SparkFun Lightning Detector - AS3935

21 available SEN-15441

The SparkFun Lightning Detector adds lightning detection to your next weather station to make sure you are aware of any bad w…

$24.95

Favorited Favorite 19

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Ammonia Gas Sensor - MQ-137

In stock SEN-17053

The MQ-137 is an Ammonia (NH₃) gas sensor from Winsen. The sensing element is SnO2, which has lower conductivity in clean a…

$34.95

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SparkFun Sound Detector

In stock SEN-12642

The SparkFun Sound Detector is a small and very easy to use audio sensing board with three different outputs. The Sound Detec…

$10.95

Favorited Favorite 58

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Geophone - SM-24

Out of stock SEN-11744

The SM-24 geophone element is designed to offer the highest performance in seismic exploration based upon field-proven I/O Se…

$59.95

Favorited Favorite 28

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SparkFun Weather Shield

32 available DEV-13956

The SparkFun Weather Shield is an easy-to-use Arduino shield that grants you access to barometric pressure, relative humidity…

$39.95

Favorited Favorite 31

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SparkFun Electret Microphone Breakout

In stock BOB-12758

This small breakout board couples an Electret microphone (100Hz--10kHz) with a 60x mic preamplifier to amplify the sounds of …

$6.95

Favorited Favorite 26

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Hydrogen Sulfide Gas Sensor - MQ-136

In stock SEN-17052

The MQ-136 is a Hydrogen Sulfide detection sensor with a sensing range of 1 - 200ppm. The sensing element is SnO2 which has l…

$34.95

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Humidity and Temperature Sensor - RHT03

In stock SEN-10167

The RHT03 (also known by DHT-22) is a low cost humidity and temperature sensor with a single wire digital interface. The sens…

$9.95

Favorited Favorite 79

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SparkFun Digital Temperature Sensor Breakout - TMP102

In stock SEN-13314

The TMP102 is an easy-to-use digital temperature sensor from Texas Instruments. The TMP102 breakout allows you to easily inco…

$4.95

Favorited Favorite 25

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Dual Gas CO and CH4 Detection Sensor - MQ-9B

In stock SEN-17050

The MQ-9B is a CO and CH₄ gas detection sensor form Winsen. The sensing material of the MQ-9B is SnO2, which has a low cond…

$5.95

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SparkFun Humidity Sensor Breakout - SHTC3 (Qwiic)

In stock SEN-16467

The SparkFun SHTC3 Humidity Sensor Breakout is a low cost, easy-to-use, highly accurate digital humidity and temperature sens…

$9.95

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SparkFun Triple Axis Magnetometer Breakout - MLX90393 (Qwiic)

30 available SEN-14571

The SparkFun MLX90393 Magnetometer Breakout is a 3-axis magnetic sensor, capable of sensing very small fields even under satu…

$14.95

Favorited Favorite 5

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Qwiic PT100 - ADS122C04

In stock SPX-16770

Do you need to measure temperature accurately and reliably? This could be the perfect solution! The SparkX Qwiic PT100 is bas…

$29.95

Favorited Favorite 0

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SparkFun Digital Temperature Sensor - TMP102 (Qwiic)

In stock SEN-16304

The SparkFun TMP102 Qwiic is an easy-to-use digital temperature sensor equipped with a couple of Qwiic connectors for easy I2…

$5.95

Favorited Favorite 5

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SparkFun Altitude/Pressure Sensor Breakout - MPL3115A2

In stock 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 w…

$14.95

Favorited Favorite 42

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Qwiic Pressure/Humidity/Temp (PHT) Sensor - MS8607

16 available SPX-16298

The MS8607 from TE is an impressive combination pressure, humidity, temperature (PHT) sensor with accuracy of ±2mbar pressur…

$19.95

Favorited Favorite 4

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SparkFun Sound Detector (with Headers)

In stock SEN-14262

The SparkFun Sound Detector is a small and very easy-to-use audio sensing board with three different outputs. The Sound Detec…

$11.95

Favorited Favorite 7

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Temperature Sensor - TMP36

In stock SEN-10988

This is the same temperature sensor that is included in our [SparkFun Inventor's Kit](http://www.sparkfun.com/products/12060)…

$1.50

Favorited Favorite 65

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EasyVR 3 Plus Shield for Arduino

In stock COM-15453

The EasyVR 3 Plus Shield is a voice recognition shield for Arduino boards integrating an EasyVR module.

$49.95

Favorited Favorite 10

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SparkFun Qwiic Thermocouple Amplifier - MCP9600 (Screw Terminals)

Out of stock SEN-16295

The MCP9600 Breakout is a high accuracy Thermocouple Amplifier equipped with screw terminals and I2C interface, accessed over…

$19.95

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SparkFun Thermocouple Breakout - MAX31855K

Out of stock SEN-13266

The SparkFun MAX31855K Thermocouple Breakout is a simple 14-bit resolution, SPI-compatible, serial interface thermocouple dig…

$15.95

Favorited Favorite 17

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SparkFun Qwiic Thermocouple Amplifier - MCP9600 (PCC Connector)

Out of stock SEN-16294

The MCP9600 Breakout is a high accuracy Thermocouple Amplifier equipped with a PCC Connector and I2C interface, accessed over…

$24.95

Favorited Favorite 3

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SparkX Refrigeration Gas Sensor - ZMOD4450 (Qwiic)

In stock SPX-16677

The ZMOD4450 Refrigeration Air Quality sensor is designed to measure gases emitted by food ripening or rotting.

$39.95

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SparkFun Humidity and Temperature Sensor Breakout - HIH6130

Only 9 left! 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…

$29.95

Favorited Favorite 15

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Thermocouple Connector - PCC-SMP-K

Out of stock PRT-13612

This Thermocouple Connector is perfect for bridging the gap between Type-K thermocouples with standard connectors with a PCB.…

$3.95

Favorited Favorite 10

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Thermocouple Type-K - Glass Braid Insulated (Bare Wire)

Only 12 left! SEN-00251

36" high temperature Type-K Thermocouple with glass braid insulation.

$13.95

Favorited Favorite 7

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Smoke Sensor - MQ-2

In stock SEN-17049

The MQ-2 is a smoke and combustible gas sensor from Winsen. It can detect flammable gas in a range of 300 - 10000ppm.

$4.95

Favorited Favorite 3

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Magnetic Door Switch Set

In stock COM-13247

This is the Magnetic Door Switch Set, a small reed switch assembly specifically designed to alert you when doors, drawers, or…

$3.50

Favorited Favorite 62