Arduino co2 sensor

ESP32 ESP-32 Development Board Wireless WiFi Bluetooth Dual Core CP2104 Filters Power Module 2.4GHz RF For Arduino Nodemcu

NANO IO 3.0 Expansion Board

Household Air Quality Detector Multifunctional T/H Sensors CO2 Tester LCD Display with Backlit

1PCS Promotion For Arduino Nano 3.0 Atmega328 Controller Compatible Board WAVGAT Module PCB Development Board Without USB V3.0

30PCS Photoresistor LDR CDS 5mm Light-Dependent Resistor Sensor GL5516 Arduino

Arduino DIY kit

5pcs Digital Light Intensity Detection Photosensitive Sensor Module Arduino Smart Car Robot

Ceiling-Mounted Multi-Sensor Housing: Smoke, Humidity, Temperature, Dust, CO2 Sensors.

Mini MEGA 2560 Pro Micro USB CH340G ATMEGA2560-16AU For Arduino Mega 2560 R3 NEU

Dual-axis XY Joystick Module PS2 Joystick Control Lever Sensor KY-023 For Arduino

STM32F103C6T6 STM32F103C8T6 ARM STM32 Minimum System Development Board Module For Arduino

14 In 1 Tuya WIFI Intelligent Air Quality Monitor Indoor CO2 Detector

MQ-7 Module Carbon Monoxide Gas Sensor Detection Alarm MQ7 Sensor Module for Arduino

4WD Smart Robot Car Kits For Arduino UNO R3 With Ultrasonic sensor,SG90 Servo Upgraded V2.0 DIY Electronic Programming Kit

DS18b20 Stainless Steel Package Waterproof DS18b20 Temperature Probe Temperature Sensor 18B20 For Arduino

SR602 Module MINI Motion Sensor Detector Pyroelectric Infrared PIR Kit Sensory Switch Bracket for Arduino DIY With Lens

3x DHT22 / AM2302 Digital Temperature & Humidity Sensor for Arduino Raspberry Pi

ESP32-S3 Dev Board: 1.43" AMOLED Display, Touchscreen, SD Slot, 6-Axis Sensor, Arduino-Compatible

HC-SR501 Adjust IR Pyroelectric Infrared PIR Motion Sensor Detector Module for Arduino for Raspberry Pi Kits

Xiaomi Qingping Air Detector Lite, Real-time Air Quality Monitor for PM2.5 CO2 TVOC Temp & Humidity with Retina IPS Touch Screen

10PCS 5V Active Buzzer Magnetic Long Continous Beep Tone Alarm Ringer 12x9.5mm Mini Active Piezo Buzzers, for Arduino

WIFI Infrared CO2 Monitor Carbon Dioxide Monitor NDIR Sensor Air Quality Monitor

DC 4V-30V LM35D Digital Temperature Sensor Linear Module LM35 For Arduino Smart Car

Snow Raindrops Detection Sensor Module Rain Weather Module Humidity For Arduino Relay Control Module Rain Water Sensor Module

MFRC-522 RFID Kit RF IC Card Sensor Module S50 Blank Card Key Ring Compatible for Arduino Raspberry Pi

15-in-1 CO2 Monitor with PM2.5, PM1.0, Formaldehyde Detection, Temperature, Humidity, and Air Quality Sensor

DHT22 Digital Temperature and Humidity Sensor AM2302 Module+PCB with Cable for Arduino

MQ-2 MQ-3 MQ-4 MQ-5 MQ-6 MQ-7 MQ-8 MQ-9 MQ-135 Detection Smoke Methane Liquefied Gas Sensor Module for Arduino Starter DIY Kit

Portable CO2 Monitor Meter Sensor Indoor with Alarm Infrared NDIR Sensor

Aokin KY-040 rotary encoder module

Tzt Dht22 Digital Temperature And Humidity Sensor Am2302 Module+Pcb With Cable For Arduino

16pcs/lot Sensor Module Board Set Kit For Arduino Raspberry Pi Model B 16 Kinds Of Sensor

Tuya WiFi Intelligent Air Quality Detector PM2.5 CO2 TVOC HCHO Temperature Humidity 6 In 1 Detector

TVOC Gas Sensor for Total Volatile Organic Compounds, Compatible with Arduino, Raspberry Pi, ESP32, and Pico

Nano I/O Expansion Sensor Shield Module For Arduino R3 Nano

Aokin HC-SR04 Ultrasonic Sensor Module

1PC Rain Water Liquid Level Sensor Module Depth of Detection for Arduino

DHT11 Arduino temperature and humidity modul

TOF Mini LiDAR Sensor for Arduino, Raspberry Pi & ESP32

GY-31 TCS230 TCS3200 Color Sensor Module Color Recognition Module Color Detector For MCU Arduino

VL6180X Optical Sensitive Resistance Light Detection Photosensitive Sensor Module for Arduino I2C Interface

DC 5V 12V Soil Moisture Sensor Relay Control Module Automatic Watering of Humidity Starting Switch For Arduino Humidity Sensors

10PCS 5V Active Buzzer Mini Magnetic Long Continous Beep Tone 9*5.5mm Alarm Ringer Active Piezo Buzzers, for Arduino

10PCS Mini Active Buzzer 3V 0955 9*5.5mm Active Piezo Buzzers TMB09A03 for Arduino

1-10Set Automatic Irrigation Module DIY Kit Automatic Watering Kit Soil Moisture Sensor Relay Module 50cm Hose for Arduino

Channel Relay Module For Arduino Kit Sensor HC-SR04

Digital CO2 Meter Air Quality Monitors 1200mAh With Temperature And Humidity Sensor For Office Use Accurate Air Analysis

Load Cell 1KG 5KG 10KG 20KG HX711 AD Module Weight Sensor Electronic Scale Aluminum Alloy Weighing Pressure Sensor For Arduino

5Pcs Ir Infrared Obstacle Avoidance Sensor Module For Arduino Smart Car Robot

Ds18B20 Temperature Sensor Module Waterproof Digital Sensor Cable Stainless Steel Probe Terminal Adapter For Arduino

BME280-5V Digital Precision Sensor | Multifunction: Pressure, Humidity, Temperature | High Accuracy | I2C/SPI Interface | For Arduino, Raspberry Pi

Air Quality Meter Colorful Display Portable Versatile CO2 Temperature Humidity Sensor Detector

CO2 Monitor for Aquarium Plant Tanks - Glass Fish Tank CO2 Sensor

Air Quality Tester CO2 HCHO TVOC PM2.5 PM10 Temperature Humidity Sensor TFT Screen Air Quality Detector White

Air Quality Monitor CO2 Detector 3 In 1 Accurate Tester for CO2 Temperature Humidity NDIR Sensor

Arduino Dual-Axis Xy Joystick Module Higher Quality For Ps2 Joystick Control Lever Sensor Ky-023 Rated 4.9/5

5pcs Soil Humidity Hygrometer Moisture Detection Water Sensor Module Arduino Wire TE215

FPM10A Optical Fingerprint Reader Sensor Module Door Lock Fingerprint Scanner Module For Arduino Serial Communication Interface

DS18B20 18B20 Temperature Measurement Sensor Module For Arduino

IC Card Sensor Module Key Ring RC522 Mifare RF S50 Blank Card RFID Card Reader Module MF RCS522 Module for Arduino Raspberry Pi

Gy-35-Rc Single Axis Gyroscope Analog Gyroscope Sensor Module Enc-03Rc Module For Arduino

DIY KIT 3.3V/5V Ceramic Piezo Vibration Sensor Module Analog Controller Components Supplies Sensor for Arduino UNO R3

AHT20+BMP280 High Precision Digital Temperature And Humidity Atmospheric Pressure Sensor For Arduino

MAX30102 Heart Rate Sensor Module Puls Detection Blood Oxygen Concentration Test For Arduino Ultra-Low Power

1Pc 1/2'' Water Flow Sensor Control Effect Flowmeter Hall 1-30L/Min For Arduino

PM2.5 Detector Indoor Air Quality Monitor PM1.0 PM2.5 PM10 HCHO CO2 Temp Humidity Sensor

Max31865 Resistance Temperature Detector Module Rtd Sensor With Pt100-Pt1000 Thermocouple Electronic Diy Board For Arduino

Tilt Sensor Module Tilt Module Smart Car Accessory Arduino

Louver Box Type Weather Sensor Air Temperature Humidity CO2 Light Intensity Sensor RS485 Output

Aokin Sensor R3 V5 Expansion board for connecting additional sensors

Intelligent Air Quality Monitor 6 In 1 TVOC CO2 Sensor Formaldehyde Detector Travel

Carbon Dioxide Sensor Infrared CO2 Concentration Detection 5000ppm Gas HAVC RV Smart Home Air

ADC Sensor Expansion Board for Raspberry Pi 2/3/4 and Arduino

Formaldehyde Detector TVOC Sensor CO2 PM2.5 Temperature Humidity Air Quality Tester 5 In 1 Black

Qingping Air Quality Monitor: PM2.5, PM10, Noise, Smog, CO2 Sensor

Tds Sensor Module For Arduino 51/Stm32 With Ds18B20 Temperature Dissolved Solids Analog Signal Soluble Solid Water Quality

Infrared CO2 Carbon Dioxide Sensor S8‑0053 400‑2000PPM Serial Communication PWM

3in1 Air Quality Tester CO2 Temperature Humidity Detector NDIR Sensor Auto Brightness Adjustable

5pcs DS18B20 Thermometer Temperature Sensor 18B20 TO-92 IC Chips for Arduino

DS18B20 Digital temperature sensor

CO2 Meter Air Quality Monitor Handheld CO2 Monitor Carbon Dioxide Concentration CO2 Sensor Air Quality Carbon Dioxide Meter 0-9999ppm

FRC-522 RC522 IC Card Sensor Wireless Module RFID Radio Frequency NFC 13.56MHz with S50 Keychain & Card for Arduino Raspberry Pi

KY-035 Hall Effect Sensor Module | Magnetic Detection | Analog Output | Arduino Compatible | Ideal for Education and DIY Projects

FRC-522 RC522 RFID IC Wireless Module 13.56MHz NFC IC Card Sensor IC Card Proximity Module for Arduino