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Showing 21-40 of 97 products · 3 unavailable products hidden
Gravity: Arduino CO/Combustible Gas Sensor (MQ9)
The Gravity MQ-9 gas sensor detects carbon monoxide (CO) and combustible gases including methane and propane. It uses a semiconductor SnO2 sensing element that cycles between high and low temperatures — detecting CO at low temperature (1.5V) and combustible gases at high temperature (5.0V). With...
Gravity: Analog pH Sensor/Meter Kit V2
The Gravity Analog pH Sensor/Meter Kit V2 is designed to measure the pH of liquids, indicating acidity or alkalinity on a scale of 0–14. It's commonly used in aquaponics, aquaculture, hydroponics, and environmental water testing. The kit includes a laboratory-grade pH probe, a signal conversion b...
Gravity: I2C SCD41 Infrared CO2 Sensor (400 - 5000 ppm)
The Gravity SCD41 Infrared CO2 Sensor provides accurate carbon dioxide, temperature, and humidity measurements in a single compact module. Based on Sensirion's SCD41 sensor, it uses photoacoustic NDIR (non-dispersive infrared) sensing with patented PASens and CMOSens technology for high accuracy ...
MindPlus Coding Kit for Arduino
MindPlus Coding Kit for Arduino is a set of tools for programming learning. As its compatibility for Mind+, a graphical coding software for starters, and Arduino IDE, this kit is well applicable to students from the lower grade to the higher grade. It comes with an Arduino Uno R3 mainboard and a ...
Gravity: Analog Water Pressure Sensor
The Gravity Analog Water Pressure Sensor measures water or gas pressure and outputs a linear 0.5–4.5 V analogue signal proportional to the applied pressure (0–1.6 MPa). Using the DFRobot Gravity 3-pin interface, it connects directly to Arduino and other 5 V microcontrollers for easy integration i...
Gravity: Arduino pH Sensor Meter Pro
This is a professional Arduino pH Sensor Meter Kit with industrial electrode. It has built-in simple, convenient , practical connection and long life (up to 1 year), which makes it very suitable for long term online monitoring. It has an LED which works as the Power Indicator, a BNC connector...
Gravity: Arduino pH Sensor / Meter Kit
You may check the latest version - Gravity: Analog pH Sensor/Meter Kit V2 to meet your requirements and Liquid Sensor Selection Guide to get better familiar with our liquid sensor series.Need to measure water quality and other parameters but haven't got any low-cost pH meter? Find it difficult t...
Gravity: Arduino Digital Water Flow Sensor - 1/8
The Water Flow sensor measures the rate of a liquid flowing through it. The YF-S401 water flow sensor consists of a plastic valve body, flow rotor and hall effect sensor. It is usually used at the inlet end to detect the amount of flow. When liquid flows through the sensor, a magnetic rotor w...
Gravity: Water Flow Sensor (1/2) For Arduino
INTRODUCTION The Gravity Water Flow sensor measures the rate of a liquid flowing through it. The YF-S201 water flow sensor consists of a plastic valve body, flow rotor and hall effect sensor. It is usually used at the inlet end to detect the amount of flow. When liquid flows throug...
Gravity: Laser PM2.5 Air Quality Sensor For Arduino
The Gravity Laser PM2.5 Air Quality Sensor uses laser scattering to measure suspended particulate matter concentrations in the air. It detects particles from 0.3 to 10 µm in diameter and outputs digital concentration data via a serial interface — ideal for building air quality monitors, weather s...
Gravity Factory-Calibrated Laser Methane CH4 Sensor
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This lab-grade methane sensor is designed for quantitative CH₄ measurement in research settings, using TDLAS technology to report methane concentration in %LEL rather than the broad estimates typical of MQ-style gas sensors.It is factory calibrated and intended for reliable data collection in com...
Gravity: Arduino Analog Flame Sensor
This Gravity analog flame sensor detects fire and infrared light sources in the 760–1,100 nm wavelength range. With a 60° detection angle and analogue output proportional to flame distance, it's widely used in firefighting robots, fire alarm projects, and other safety applications. The Gravity i...
Gravity: Formaldehyde (HCHO) Sensor (Arduino Raspberry Pi Compatible)
The Formaldehyde (HCHO) sensor is an Arduino & Raspberry Pi compatible module, which is the ideal solution for indoor air quality monitor. This is a HCHO(CH2O) sensor module. It can be used to measure HCHO in air. Through it, you can know the air quality. This sensor module is widely used ...
Gravity: Analog High Temperature Sensor
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 temp...
Gravity: Arduino Digital Microwave Sensor (Motion Detection)
INTRODUCTION The microwave sensor applies the Doppler effect to detect moving objects using microwaves. This differs from the method used by a regular infrared (IR) sensor as microwave is sensitive to a variety of objects that are microwave-reflective, and its sensor...
Gravity: Arduino PIR (Motion) Sensor
A passive infrared (PIR) motion sensor from DFRobot's Gravity series. It detects infrared radiation from people and animals in motion and outputs a digital HIGH signal when movement is detected — ideal for security systems, occupancy sensing, and automated lighting projects. The sensor operates ...
Gravity: I2C High Temperature Sensor (K-Type, 800℃)
This Gravity I2C high-temperature sensor pairs a signal amplification module (MAX31855K) with a stainless steel sheathed K-type thermocouple probe for measuring temperatures up to 800 °C. The module converts the thermocouple's millivolt signal to a 14-bit digital reading over I²C, with cold-junct...
Gravity: Non-contact IR Temeperature Sensor For Arduino
INTRODUCTION We can divide temperature measurement in to two types: contact and non-contact. Contact measurement can only accurately measure temperature when the testing object and the sensor reach thermal equilibrium. This can mean longer response times and reading ...
Gravity: I2C BME280 Environmental Sensor (Temperature, Humidity, Barometer)
BME280 is an environmental sensor that integrates onboard temperature sensor, humidity sensor and barometer. The sensor is of high precision, multiple functions, and small size etc. It provides both SPI and I2C interfaces, which make it easy to make a fast prototypes. It can be widely used in...
Gravity: I2C Non-contact IR Temperature Sensor (MLX90614-DCI)
We can divide temperature measurement in to two types: contact and non-contact. Contact measurement can only accurately measure temperature when the testing object and the sensor reach thermal equilibrium. This can mean longer response times and reading inaccuracies offset by ambient temperat...
