C.J. SHOP 5PCS MQ-2 MQ2 Smoke Gas LPG Butane Methane Sensor Detector Module For Arduino

DIYmall 5 Pack HC-SR501 Pir Motion IR Sensor Body Module Infrared for Arduino

WINGONEER 2PCS MQ-7 MQ7 Carbon Monoxide Detection Sensor Module CO Gas Sensor Module

HiLetgo 5pcs DHT11 Temperature and Humidity Sensor Module for Arduino Raspberry Pi 2 3

AZDelivery ⭐⭐⭐⭐⭐ DHT22 / AM2302 Digital Temperature and Humidity Sensor Replace SHT11 SHT15 for Arduino and Raspberry Pi

Microchip MCP3008-I/P 10-Bit ADC with SPI (Pack of 4)

Gowoops 2 PCS DHT22 Temperature Humidity Sensor Module Digital Measurement for Arduino Raspberry Pi 2 3

JBtek 4 Channel DC 5V Relay Module for Arduino Raspberry Pi DSP AVR PIC ARM

3pcs ESP8266 NodeMcu Lua CP2102 WIFI Internet Development Board Wireless Module works with Arduino IDE/Micropython

Elegoo EL-CP-004 120pcs Multicolored Dupont Wire 40pin Male to Female, 40pin Male to Male, 40pin Female to Female Breadboard Jumper Wires Ribbon Cables Kit for arduino

HiLetgo 2pcs ESP8266 NodeMCU LUA CP2102 ESP-12E Internet WiFi Development Board Open Source Serial Wireless Module Works Great with Arduino IDE/Micropython (Pack of 2PCS)