.  . Temperature . DHT21 AM2301 Digital Temperature Humidity Sensor Module For Arduino

DHT21 AM2301 Digital Temperature Humidity Sensor Module For Arduino

$12.95 (AUD)

Sorry!... this product is currently out of stock please contact us for updates on availability. Or see below if we may have "discontiued" this product.

They offer a linear response but have the lowest accuracy of the basic sensor types. These temperature sensors also have the slowest responsiveness across the narrowest temperature range (-70 °C to 150 °C).

Qty Discount
2 - 4 5%
5 - 9 8%
10 + 10%
SKU: TS-P241 Category:


We Ship World Wide We are an Australian owned and Based Company. We are an Australian owned and Based Company. We are an Australian owned and Based Company. We are an Australian owned and Based Company. We are an Australian owned and Based Company. We are an Australian owned and Based Company. We are an Australian owned and Based Company.

Calculate Shipping - shipping options and estimates can be found in your shopping cart.

A DHT21 AM2301 Digital Temperature Humidity Sensor Module For Arduino is a thermally sensitive resistor that exhibits a continuous, small, incremental change in resistance correlated to variations in temperature. An NTC thermistor provides higher resistance at low temperatures. As temperature increases, the resistance drops incrementally, according to its R-T table. Small changes reflect accurately due to large changes in resistance per °C. The output of an NTC thermistor is non-linear due to its exponential nature; however, it can be linearized based on its application. The effective operating range is -50 to 250 °C for glass encapsulated thermistors or 150°C for standard Thermistors.

Description:
  • DHT21 AM2301 Digital Temperature Humidity Sensor Module For Arduino
  • Power Supply: 3.3-5.2V DC
  • Resolution: ±0.1
  • Temperature measurement range: -40 ~ +80 ℃ @ ±0.5℃
  • Humidity measurement range: 0-99.9%RH @ ±3%RH
  • Ultra-low power: 300uA Average, 15uA when sleeping
  • Long-distance signal transmission: up to 20m
  • Package Includes DHT21 AM2301 Digital Temperature Humidity Sensor Module For Arduino
Temperature Sensor Types
  • Negative Temperature Coefficient (NTC) thermistor

A thermistor is a thermally sensitive resistor that exhibits a continuous, small, incremental change in resistance correlated to variations in temperature. An NTC thermistor provides higher resistance at low temperatures. As temperature increases, the resistance drops incrementally, according to its R-T table. Small changes reflect accurately due to large changes in resistance per °C. The output of an NTC thermistor is non-linear due to its exponential nature; however, it can be linearized based on its application. The effective operating range is -50 to 250 °C for glass encapsulated thermistors or 150°C for standard Thermistors.

  • Resistance Temperature Detector (RTD)

A resistance temperature detector, or RTD, changes the resistance of the RTD element with temperature. An RTD consists of a film or, for greater accuracy, a wire wrapped around a ceramic or glass core. Platinum makes up the most accurate RTDs while nickel and copper make RTDs that are lower cost; however, nickel and copper are not as stable or repeatable as platinum. Platinum RTDs offer a highly accurate linear output across -200 to 600 °C but are much more expensive than copper or nickel.

  • Thermocouples

A thermocouple consists of two wires of different metals electrically bonded at two points. The varying voltage created between these two dissimilar metals reflects proportional changes in temperature. Thermocouples are nonlinear and require a conversion with a table when used for temperature control and compensation, typically accomplished using a lookup table. Accuracy is low, from 0.5 °C to 5 °C but thermocouples operate across the widest temperature range, from -200 °C to 1750 °C.

  • Semiconductor-based temperature sensors

A semiconductor-based temperature sensor is usually incorporated into integrated circuits (ICs). These sensors utilize two identical diodes with temperature-sensitive voltage vs current characteristics that are used to monitor changes in temperature. They offer a linear response but have the lowest accuracy of the basic sensor types. These temperature sensors also have the slowest responsiveness across the narrowest temperature range (-70 °C to 150 °C).

Development  Resources: demo codes, schematics, datasheets, etc

Reference for Arduino and reference to all matters

Ardunio from Wikipedia

Notes:

1. There may be slight size deviations due to manual measurement, different measuring methods and tools.
2. The picture may not reflect the actual colour of the item because of different photographing light, angle and display monitor.

Other Related Products

Workshop Package Kit for Arduino - 02
Workshop Package Kit for Arduino – 02

The Arduino Workshop Kit with the Arduino Uno controller board comes with a selection of all the components/parts necessary to participate in an introductory Arduino workshop.

 

Weight 0.018 kg
Dimensions 7 × 4 × 1.5 cm

Product Applications



Current Product Support

SKU Product Type Download/View
TS-P241 DHT21 AM2301 Digital Temperature Humidity Sensor Module For Arduino - DHT21 also named as AM2301 Datasheet Download

We Customize Just for You!!

Tempero Systems offers many custom IoT electronic design services to help tailor our product to your exact needs. Whether you are looking for custom firmware, circuit board modifications, metal enclosures, or industrial color printing, we can help you with a wide variety of design services.


Product Reviews and FAQ's

Please login or register to ask a question. Thanks

Post Your Question

×

* All questions and comments are approved by a system administrator before re-posting to our FAQ product sections.