Sensor type

Sensor model

Sensor sensitivity

Power supply

Manufacturer

Temperature sensor

LM35DZ

0˚C to 100˚C

5 V

Texas Instruments

Smoke sensor

MQ-2

Smoke, LPG, Butane, Propane, Methane, Alcohol and Hydrogen

5 V

Sunrom Electronics

Relative humidity and temperature sensor

DHT22

Humidity: 0% to 100% RH Temperature: −40˚C to 125˚C

5 V

Aosong