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Showing 21-40 of 50 products · 10 unavailable products hidden
Waterproof DS18B20 Digital temperature sensor + extras
This is a pre-wired and waterproofed version of the DS18B20 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 an...
Gravity Calibrated NH3 Ammonia Sensor - I2C/UART
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This calibrated gas sensor measures ammonia concentration in the environment using an electrochemical probe. It supports three output modes — analogue, I2C and UART — so it can slot into a wide range of microcontroller and single-board computer projects.The probe is factory-calibrated for quick s...
MPL3115A2 - I2C Barometric Pressure/Altitude/Temperature Sensor
The MPL3115A2 is a precision barometric pressure, altitude, and temperature sensor from NXP (formerly Freescale) that communicates over I2C. With 1.5 Pa resolution, it can resolve altitude changes as small as 0.3 m and includes a built-in altimeter calculation — no external calibration or manual ...
Code.org Circuit Playground Educators' Pack
For many years, instructors and teachers have asked us to come up with a better way to teach programming and electronics. We have worked on Circuit Playground Express for over a year to come up with a board that is powerful, beautiful, fun, and perfect for teaching Code.org CS Discoveries Circ...
Multi-function Environmental Module - CCS811+BME280
Build up a simple environmental monitor station with this multi-function environment sensor! Based on the combination of CCS811+BME280 chip, this module features high accuracy, I2C interface, and fast Measurement. The BME280 can provide temperature and humidity compensation for CCS811 to impro...
Gravity: 9 Pcs Sensor Set for Arduino
This is DFRobot's basic sensor set for arduino. Set includes light sensor, touch sensor, temperature sensor, magnetic sensor, vibration sensor, tilt sensor, big button, LED lighting module and Grayscale sensor. To connect these sensors to Arduino, we suggest to use our IO expansion shield...
Carbon Monoxide Flammable Gas Sensor MQ-9
This semiconductor gas sensor detects the presence of Carbon Monoxide at concentrations from 10 to 1,000 ppm and combustible gas from 100 to 10,000 ppm. The sensor’s simple analog voltage interface requires only one analog input pin from your microcontroller.
Adafruit TMP235 - Plug-and-Play STEMMA Analog Temperature Sensor - TMP235
The Adafruit TMP235 is a plug-and-play analog temperature sensor with a 3-pin JST PH (STEMMA) connector. Unlike I2C sensors, this one outputs a simple analog voltage proportional to temperature — just connect it to any microcontroller with an analog input and read the value. No libraries or compl...
Gravity: H2 Sensor (Calibrated) - I2C & UART
This is a sensor that detects hydrogen concentration and supports three output modes: analog, I2C, and UART. The probe has been calibrated at the factory, which can quickly and accurately measure the concentration of hydrogen in the environment. Can be widely used in the detection of hydrogen in ...
mbed Application Board
Turbo-charge your mbed LPC1769 dev board with this compact but feature-full application board. Fully assembled, just plug in your mbed and you will be ready to rock.Featuring: 128x32 Graphics LCD 5 way joystick 2 x Potentiometers 3.5mm Audio jack (Analog Out) Speaker, PWM Conencted 3 Axis +/1...
Multifunction DHT11 LM35 Temperature Humidity Easy Module Shield for Arduino UNO
The board is designed for beginners in Arduino, with various components available that makes you build more than 10 projects easily. You won’t have to solder or connect anything at all, just plug it in a shield and start coming up with various simple examples rather than dealing with cables, sens...
Gravity: Analog Infrared CO2 Sensor For Arduino (0~5000 ppm)
The concentration of carbon dioxide (0.03% usuallly) is related to daily life. Recently, there's a study showing that the atmospheric CO2 content has reached 0.0385% (385 ppm) which is the highest value since 2.1 million years. The raise of atmospheric CO2 content to some extent results in gl...
SparkFun Infrared Temperature Breakout - TMP006
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 TMP0...
LilyPad Temperature Sensor
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 Sensor Module DS18B20
A pre-wired DS18B20 digital temperature sensor on a breakout module with three labelled pins for easy connection. The DS18B20 uses the 1-Wire protocol, requiring only a single data line to communicate temperature readings to a microcontroller such as a Raspberry Pi, Arduino, or micro:bit. Key Fe...
MLX90640 32x24 IR Array Sensor - 55° FOV
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The MLX90640 is a fully calibrated thermal IR array sensor with 32x24 pixels, giving you 768 FIR pixels for non-contact temperature sensing. It uses a digital I2C interface and comes in an industry standard 4-lead TO39 package.An ambient sensor is integrated to measure the chip temperature, along...
MPL115A2 - I2C Barometric Pressure/Temperature Sensor
This pressure sensor from Freescale is a great low-cost sensing solution for measuring barometric pressure. At 1.5 hPa resolution, it's not as precise as our favorite pressure sensor, the BMx280 series, which has up to 0.03 hPa resolution so we don't suggest it as a precision altimeter. Howeve...
Infrared Emitter
An Infrared emitter, or IR emitter, is a source of light energy in the infrared spectrum. This little part is a light emitting diode (LED) that is used in order to transmit infrared signals from a remote control. This simple device operates at 940nm and works well for generic IR systems. This emi...
DFRobot SEN0627 Small-Angle Ultrasonic Ranging Sensor 8m IP67
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This compact ultrasonic ranging module is made for accurate long-range distance measurement in outdoor, environmental and industrial monitoring projects. It measures targets from 25 cm to 800 cm, making it useful for water level, liquid level, obstacle and container distance sensing.A narrow 15° ...
DS18B20 Digital temperature sensor + extras
These 1-wire digital temperature sensors are fairly precise (±0.5°C over much of the range) and can give up to 12 bits of precision from the onboard digital-to-analog converter. They work great with any microcontroller using a single digital pin, and you can even connect multiple ones to the s...