A chemical sensor presents information about the chemical composition of its environment (either liquid or a gas phase). The information provided by this sensor would be in the form of signals that is correlated with the concentration of analyte, a certain chemical species. Recognition and transduction are the two main steps in the operation of a chemical sensor.

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Air Quality Monitor PM 2.5, Formaldehyde, Temperature & Humidity Sensor

This is a multifunction air quality monitor that can be detected not only the concentration of parti..


Air Quality Sensor Breakout VOC and eCO2 CCS811 Adafruit

Breathe easy - we finally have an I2C VOC/eCO2 sensor in the Adafruit shop! Add air quality monitori..


Air Quality Sensor SGP30 Breakout VOC and eCO2 Adafruit

Breathe easy with the SGP30 Multi-Pixel Gas Sensor, a fully integrated MOX gas sensor. This is a ver..


Analog Alcohol Sensor MQ3

The analog gas sensor - MQ3 is suitable for detecting alcohol, this sensor can be used in a Breathal..


Analog Dissolved Oxygen Sensor Meter Kit For Arduino Gravity

This is a dissolved oxygen sensor kit, which is compatible with Arduino microcontrollers. This produ..


Carbon Monoxide Analog Sensor MQ7 For Arduino Gravity

This is an Arduino Carbon Monoxide Sensor. It uses MQ7 probe to detect Carbon Monoxide (CO)  co..


Conductivity Analog Electrical Meter with Temperature Compensation

Why measure EC? The salinity of the soil, irrigation water systems or fertiliser solutions is an imp..


Conductivity K 1.0 Kit

This Electrical Conductivity kit includes the K1.0 conductivity probe and the EZO™ Conductivity Circ..


Dissolved Oxygen Kit

Atlas Scientific is on a mission to make high-quality sensors for environmental monitoring available..


Gas Analog CH4 Gas Sensor MQ4 For Arduino

The MQ4 is used in gas leakage detecting equipment in consumer and industry markets,this sensor is s..


Gas Analog Smoke LPG CO Sensor MQ2

The Analog Smoke/LPG/CO Gas Sensor(MQ2) module utilizes an MQ-2 as the sensitive component and has a..


Gas Carbon Dioxide CO2 Analog Sensor Gravity

Gas CO2 Analog Sensor Gravity. "Greenhouse Effect" is melting the Earth ice core every minute and cr..


Gas CO Combustible Analog Sensor MQ9 For Arduino Gravity

This is an Gas CO Combustible Analog Sensor MQ9 For Arduino Gravity. It uses MQ-9 to detect Carbon M..


Gas LPG Butane Propane Methane Alcohol Sensor Analog MQ2 For Arduino Gravity

This is a generic Arduino gas sensor. It has MQ2 probe which is able to detect LPG, i-butane, prop..


Gas Sensor MQ135

Sensitive material of MQ135 gas sensor is SnO2, which with lower conductivity in clean air. When the..


Gas Sensor MQ5 Analog LPG For Arduino

The MQ5 Gas Sensor module is useful for gas leakage detecting. It can detect LPG, i-butane, methane,..


Gas Sensor MQ6 Analog Propane For Arduino

The MQ6 is a simple-to-use liquefied petroleum gas (LPG) sensor. It can be used in gas leakage detec..


Hydrogen Gas Analog Sensor MQ8 For Arduino Gravity

This is an Arduino hydrogen gas sensor. It has high sensitivity to Hydrogen (H2) and less sensitivit..


Moisture Sensor Grove

TheGrove - Moisture Sensor can be used to detect the moisture of soil, to judge if there is dampness..


ORP Analog Meter V1.0

In the ever-increasing need and awareness for health and safety, water has become a focus point for ..


ORP Kit Atlas Scientific

This is the ORP Kit, a large sensor kit that measures the ability of a solution to act as an oxidizi..


pH 10.00 Calibration Solution Liquid

pH 10.00 Works with any pH Probe 125ml (4oz) or 250ml (8oz) ±0.02 pH at 25°C Standardized ag..


pH 4.00 Calibration Solution Liquid

pH 4.00 Works with any pH Probe 125ml (4oz) or 250ml (8oz) ±0.02 pH at 25°C standardized aga..


pH 7.00 Calibration Solution Liquid

DETAILS:pH 7.00Works with any pH Probe125ml (4oz) or 250ml (8oz)±0.02 pH at 25°CStandardized against..


pH Meter Pro Analog Sensor

This is an Analog pH Meter Kit with industrial real-time online electrode, specially designed for ..


pH Meter Sensor Analog Kit (Arduino Compatible)

You may now measure water quality and other parameters affordably. It also Arduino Compatible, -- es..


pH Meter Sensor Kit Arduino Raspberry Pi Compatible Atlas Scientific

Need to measure precise pH? This kit includes everything you need including buffer solutions for cal..


pH Probe Atlas Scientific

This pH Probe can be fully submerged in fresh water or salt water, up to the BNC connector indefin..


pH Sensor Meter Analog Spear Tip Kit for Soil and Food Applications Gravity

This spear tip pH sensor/meter kit can directly stab into semisolid material to measure the pH val..


Soil Moisture Sensor Analog Digital

This Soil Moisture Sensor can be used to detect the moisture of soil or judge if there is water arou..