Products 1-43 of 43
Show
One Wire Waterproof Temperature Sensor
Price: $8.12
View
Availability: Stocked
Elecrow Item #: EL-STH01102S -

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 degree, the cable is jacketed in PVC so we suggest keeping it under 100 degree. 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...

Temperature Sensor - TMP36
Price: $2.50
View
Availability: Stocked
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...

BMP180 Barometer Pressure/Temperature/Altitude Sensor
Price: $12.83
View
Availability: Stocked
Elecrow Item #: EL-SEN00180BMP -

This precision sensor from Bosch is the best low-cost sensing solution for measuring barometric pressure and temperature. Because pressure changes with altitude you can also use it as an altimeter! The sensor is soldered onto a PCB with a 3.3V regulator, I2C level shifter and pull-up resistors on the I2C pins. The BMP180 is the next-generation of sensors from Bosch, and replaces the BMP085. The good news is that it is completely identical to the BMP085 in terms of firmware/software/interfacing...

DHT11 Temperature & Humidity Sensor
Price: $5.32
View
Availability: Stocked
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 microcontroller, offering excellent...

Rain/Steam Sensor
Spotlight!
Price: $4.62
View
Availability: Stocked
Elecrow Item #: EL-SPM01021S -

This water sensor works by having a series of exposed traces connected to ground and interlaced between the grounded traces are the sens traces. The sensor board has a demension of 5.0 x 4.0cm. There is also a on-board potentiometer to adjust the sensitivity, you can get the amount of water induced contact between the grounded and sensor traces.With the comparator LM393, users can get both the analog signal and digital signal. Connect this sensor to 5V power, adjust the sensitive, if there is...

Humidity and Temperature Sensor - RHT03
Price: $16.58
View
Availability: Stocked
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 " ...

DS18B20 Temperature Sensor
Price: $4.67
View
Availability: Stocked
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 environmental controls, sensing temperatures...

MQ135 Gas Sensor for Air Quality
Price: $8.87
View
Availability: Stocked
Elecrow Item #: EL-SEN17850M -

Sensitive material of MQ135 gas sensor is SnO2, which with lower conductivity in clean air. When the target combustible gas exist, The sensors conductivity is more higher along with the gas concentration rising. Please use simple electrocircuit, Convert change of conductivity to correspond output signal of gas concentration. MQ135 gas sensor has high sensitity to Ammonia, Sulfide and Benze steam, also sensitive to smoke and other harmful gases. It is with low cost and suitable for different...

Temperature Sensor - Waterproof (DS18B20)
Price: $16.58
View
Availability: Stocked
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
Retail: $2.00
Price: $1.21
View
Availability: Stocked
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 "

SparkFun Digital Temperature Sensor Breakout - TMP102
Price: $9.92
View
Availability: Stocked
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...

Weather Meters
OOD!
Price: $129.96
View
Availability: Back Order
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...

HR202 Humidity Sensor Module
Price: $5.79
View
Availability: Stocked
Elecrow Item #: EL-SEHR202H -

The HR202 Humidity Sensor Module \xa0can be applied to the storage compartment, indoor air quality control, building automation, medical, industrial control systems wide range of applications and research fields. Easy to interface with your microcontroller Specification Working voltage: 3.3V to 5VDigital output and you can change when to output 1 and 0.The current of output signal can exceed 15mA PCB\tDimension: 3.2cm X 1.4cm Wiki & External links Datasheet of HR202 Resistive humidity sensor ...

SparkFun Barometric Pressure Sensor Breakout - BMP180
Price: $16.58
View
Availability: Stocked-NoBackOrder
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 H2OhNo! ATtiny Dev Board / Water Alarm
Price: $19.92
View
Availability: Stocked
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...

Temperature Controlled Relay Module
Price: $9.99
View
Availability: Stocked
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 ON/OFF when the temperature is higher/lower than the...

SparkFun Humidity and Temperature Sensor Breakout - Si7021
OOD!
Price: $11.74
View
Availability: Back Order
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...

SHT1x Humidity and Temperature Sensor
Retail: $34.60
Price: $14.95
View
Availability: Stocked
DFRobot Item #: DFR0066 -

SHT1x Humidity and Temperature Sensor This sensor uses SHT1x sensor.  SHT1x is individually calibrated in a precision humidity chamber. The calibration coefficients are programmed into an OTP memory on the chip. These coefficients are used to internally calibrate the signals from the sensors. The 2-wire serial interface and internal voltage regulation allows for easy and fast system integration. The tiny size and low power consumption makes SHT1x the...

Infrared Thermometer - MLX90614
OOD!
Price: $33.69
View
Availability: Back Order
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....

One-Wire Ambient Temperature Sensor - MAX31820
Price: $3.22
View
Availability: Stocked
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...

Thermocouple Connector - PCC-SMP-K
OOD!
Price: $7.39
View
Availability: Back Order
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:...

One Wire Digital Temperature Sensor - DS18B20
Price: $7.08
View
Availability: Stocked
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...

SparkFun Humidity Sensor Breakout - HIH-4030
Price: $28.25
View
Availability: Stocked
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...

18B20 Temperature Sensor (Arduino Compatible)
Price: $9.68
View
Availability: Out of Stock
DFRobot Item #: DFR0024 -

18B20 Temperature Sensor (Arduino Compatible) DS18B20 is a digital temperature sensor. It can be used to quantify the environmental temperature testing. The temperature range -55 _ ~ +125 _, the inherent temperature resolution of 0.5 _, support multi-point networking mesh. Three DS18B20 can  deloyed on three lines, to achieve multi-point temperature measurement. It has a 9-12 bit serial output. Specification Voltage: +5V Interface:Digital Pin definition: 1--Output...

Advance Sensor Set for Arduino
Price: $128.85
View
Availability: Out of Stock
DFRobot Item #: KIT0011 -

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

DHT11 Temperature and Humidity Sensor
Price: $23.31
View
Availability: Out of Stock
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...

Flame sensor
Price: $8.00
View
Availability: Out of Stock
DFRobot Item #: DFR0076 -

Flame sensor Introduction The 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. Flame sensor probe angle of 60 degrees, the special sensitivity of the flame spectrum, two M3 mounting holes to stabilize the module will not spin. The...

Humidity and Temperature Sensor - SHT15 Breakout
Price: $72.53
View
Availability: Stocked-NoBackOrder
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...

LM35 Analog Linear Temperature Sensor
Price: $7.00
View
Availability: Out of Stock
DFRobot Item #: DFR0023 -

The DFRobot LM35 Linear Temperature Sensor is based on the semiconductor LM35 temperature sensor. The DFRobot LM35 Linear Temperature Sensor can be used to detect ambient air temperature. This sensor is produced by National Semiconductor Corporation and offers a functional range between -40 degree Celsius to 150 degree Celsius. Sensitivity is 10mV per degree Celsius. The output voltage is proportional to the temperature. It is commonly used as a temperature measurement sensors. It includes...

SparkFun Atmospheric Sensor Breakout - BME280
OOD!
Price: $33.69
View
Availability: Back Order
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 Sensor Breakout - T5403
OOD!
Price: $25.25
View
Availability: Out of Stock
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
OOD!
Price: $8.36
View
Availability: Back Order
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 Humidity and Temperature Sensor Breakout - HIH6130
Price: $49.42
View
Availability: Stocked
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
OOD!
Price: $70.85
View
Availability: Back Order
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 Infrared Temperature Breakout - TMP006
OOD!
Price: $25.25
View
Availability: Back Order
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
Price: $84.36
View
Availability: Stocked-NoBackOrder
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 Pressure Sensor Breakout - MS5803-14BA
OOD!
Price: $101.25
View
Availability: Back Order
Sparkfun Item #: SEN-12909 -

"This is the MS5803-14BA Pressure Sensor Breakout, a high resolution pressure sensor with both an I2C and SPI interface. This MEMS pressure sensor measures the absolute pressure of the fluid around it which includes air, water, and anything else that acts like a viscous fluid. Depending on how you interpret the data, you can determine altitude, water depth, or any other tasks that require an accurate pressure reading. What makes the MS5803-14BA unique is the the gel membrane and antimagnetic...

SparkFun Weather Shield
Price: $66.58
View
Availability: Stocked
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...

Thermocouple Type-K - Glass Braid Insulated (Bare Wire)
Price: $23.25
View
Availability: Stocked
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
OOD!
Price: $8.44
View
Availability: Back Order
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
OOD!
Price: $175.12
View
Availability: Back Order
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
OOD!
Price: $61.12
View
Availability: Back Order
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
Price: $15.53
View
Availability: Out of Stock
DFRobot Item #: DFR0198 -

Waterproof DS18B20 Digital temperature sensor Introduction 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...