Product specifications

• Product type: DHT11 temperature and humidity sensor
• Output type: digital
• Dimensions: 5x12x5.5mm
• Colour: Blue (as shown in image)
• Pin counts: 4
• Pins spacing: 0.1?
• Package contains: 1 X DHT11

DHT11 is a temperature and humidity sensor on the single chip. The sensor is a low cost basic digital temperature and humidity sensor. To sense humidity and temperature it uses a capacitive humidity sensor and a thermistor respectively. It measures the surrounding environment and gives a digital signal at its data pins. As it does not require any analog pin or data so it?s easy to use but need to be careful with timing to get data.

Specification

Voltage supply: 3-5V

Maximum current during conversion: 2.5mA

Humidity reading: 20-80%

Humidity accuracy: 5%

Temperature reading: 0-50�C

Temperature accuracy: �2%

Sampling rate: 1Hz once every second

Pin Description

Vcc: 3V to 5V

Signal: Data

NC: Not Connected

Gnd: Ground

Application

Automatic temperature control

To measure temperature and humidity

To monitor the environment

Local weather station