Warning: Cannot modify header information - headers already sent by (output started at /home/denomlwr/public_html/index.php:1) in /home/denomlwr/public_html/catalog/controller/startup/session.php on line 25Warning: Cannot modify header information - headers already sent by (output started at /home/denomlwr/public_html/index.php:1) in /home/denomlwr/public_html/catalog/controller/startup/startup.php on line 96Warning: Cannot modify header information - headers already sent by (output started at /home/denomlwr/public_html/index.php:1) in /home/denomlwr/public_html/catalog/controller/startup/startup.php on line 154 Buy DHT22 Digital Temperature and Humidity Sensor in Pakistan|Denontek.com
  • DHT22 Digital Temperature and Humidity Sensor

The DHT22 is a basic, low-cost digital temperature and humidity sensor. It uses a capacitive humidity sensor and a thermistor to measure the surrounding air, and spits out a digital signal on the data pin (no analog input pins needed). Its fairly simple to use, but requires careful timing to grab data. The only real downside of this sensor is you can only get new data from it once every 2 seconds, so when using our library, sensor readings can be up to 2 seconds old.

Simply connect the first pin on the left to 3-5V power, the second pin to your data input pin and the right most pin to ground. Although it uses a single-wire to send data it is not Dallas One Wire compatible! If you want multiple sensors, each one must have its own data pin!

Compared to DHT11,this sensor is more precise, more accurate and works in a bigger range of temperature/humidity, but its larger and more expensive

A 4.7K – 10K resistor is needed to use as a pullup from the data pin to VCC.

Specifications:

  • Low cost
  • 3 to 5V power and I/O
  • 2.5mA max current use during conversion (while requesting data)
  • Good for 0-100% humidity readings with 2-5% accuracy
  • Good for -40 to 80°C temperature readings ±0.5°C accuracy
  • No more than 0.5 Hz sampling rate (once every 2 seconds)
  • Body size 27mm x 59mm x 13.5mm (1.05″ x 2.32″ x 0.53″)
  • 4 pins, 0.1″ spacing

Downloads:

Write a review

Note: HTML is not translated!
    Bad           Good

DHT22 Digital Temperature and Humidity Sensor

  • Product Code: DHT22
  • Availability: In Stock
  • Rs.400


Related Products

Arduino MEGA 2560

Arduino MEGA 2560

The Mega 2560 is a microcontroller board based on the ATmega2560. It has 54 digital i..

Rs.990

1 Relay Module(AC250V 10A DC30V 10A)

1 Relay Module(AC250V 10A DC30V 10A)

Easy to connect RF / Bluetooth wireless interface supports XBee / BTBee, nRFL2401, CC1101 wireless m..

Rs.90

DS18B20 Digital Temperature Sensor

DS18B20 Digital Temperature Sensor

The DS18B20 digital thermometer provides 9-bit to 12-bit Celsius temperature measurements and has an..

Rs.140

Soil Moisture Sensor

Soil Moisture Sensor

This is a simple water sensor, can be used to detect soil moisture. Module Output is high level when..

Rs.320

DHT11 Digital Temperature and Humidity Sensor

DHT11 Digital Temperature and Humidity Sensor

The DHT11 is a basic, low-cost digital temperature and humidity sensor. It uses a capacitive humid..

Rs.140

20x4 Character LCD - Black on Green 5V

20x4 Character LCD - Black on Green 5V

Description: This is a basic 20 character by 4 line display. Utilizes the extremely common HD44..

Rs.480

LM 35 Temperature Sensor

LM 35 Temperature Sensor

The LM35 / LM 35 temperature sensor  is an integrated circuit sensor that can be used to measur..

Rs.75

W1209 DC 12V Heat Cool Temp Thermostat Temperature Control Switch

W1209 DC 12V Heat Cool Temp Thermostat Temperature Control Switch

Technical parameters: Control range: -50 ~ 110 Input Power: DC 12V Resolution: -9.9-99.9 0.1 , ot..

Rs.480

Tags: DHT22, digital, Humidity, Sensor, Temperature