My own device based on ESP8266. Sensor for temp, humm and pressure is BME280. Second sensor is MH-Z19 for CO2 concentration. Device located at office or home, Moscow, Russia.

using DHT11 Sensor

Stacja pogodowa - Międzyrzec Podlaski. Pomiar temperatury, wilgotności i ciśnienia.

Temperature & Humidity & LEDstate

recorded data

detect temprature and humidity by dht11,ethanol gas by mq3 sensor

Scheme to use drier Outside air to minimize basement dehumidifier run time

Node MCU 1.0 get data from DHT11 and send it to sever

measurement temperature and humidity using dht11 sensor

measurement of tempreture,humidity and ethanol gas using dh11 and mq3 sensor

Temp and Humidity

Weather station in Lübeck, Germany.

Temperature, Pressure and Humidity Sensor

A weather station made from an Arduino / ESP8266 and a bunch of sensors. Based in Hebburn, Tyne and Wear. [STILL UNDER TESTING AND MAY GO OFFLINE]

save temperature & humidity with dht22 sensor