Product Details
DHT20 High - performance Temperature Humidity Sensor for HVAC
Systems Automobiles Weather Stations
Features:
- High - precision Measurement: It adopts a new ASIC dedicated chip,
an improved MEMS semiconductor capacitive humidity sensor element
and a standard on - chip temperature element, with low power
consumption, high precision and stability.
- Good Anti - interference Ability: It has strong anti - interference
ability and can work stably in complex electromagnetic
environments.
- Convenient Digital Interface: The I2C digital output protocol is
easy to interface with microcontrollers such as Arduino, Micro:
bit, ESP32, and Raspberry Pi, facilitating system integration and
data processing.
Applications:
- HVAC Systems: Used to monitor and control the temperature and
humidity in buildings to ensure comfortable indoor environments and
energy efficiency.
- Automobiles: Applied in vehicle cabins to adjust the air -
conditioning system and maintain a comfortable driving environment.
- Data Loggers: Used for long - term recording of temperature and
humidity data in various environments, providing data support for
environmental research and analysis.
- Weather Stations: As an important part of weather stations, it is
used to measure ambient temperature and humidity, providing basic
meteorological data.
- Home Appliances: Such as smart air conditioners, dehumidifiers,
etc., which can realize automatic control according to the detected
temperature and humidity.
- Medical Equipment: Some medical equipment requires a specific
temperature and humidity environment, and the DHT20 can be used to
monitor and control the environment to ensure the normal operation
of the equipment and the safety of patients.
| Sensor Type | Temperature and Humidity Sensor |
| Communication Interface | I2C |
| I2C Address | Fixed 0x38 |
| Power Supply Voltage | DC 2.2 V - 5.5 V |
| Operating Current | < 1 mA |
| Temperature Measurement Range | -40 ℃ - +80 ℃ |
| Temperature Accuracy | ±0.5 ℃ (typical ±0.3 ℃ at 20 ℃ - 60 ℃) |
| Temperature Resolution | 0.01 ℃ |
| Humidity Measurement Range | 0% RH - 100% RH |
| Humidity Accuracy | ±3% RH (at 25 ℃); typical ±2% RH at 20% RH - 80% RH |
| Humidity Resolution | 0.024% RH |
| Response Time | Fast (suitable for real-time monitoring) |
| Long-term Stability | Excellent (factory-calibrated) |
| Output Type | Digital |
Company Profile
Yijiajie Electronics is a full range of silicon pressure sensors
from the United States, FREESCALE/, GE, MEAS, SMI, and a full range
of sensing and control products from the United States pressure,
temperature and humidity, gas flow, current, Hall effect, etc.,
Japan HAMAMATSU flame, UV sensors, photodiodes, Japan FIGARO, UK
CITY, ALPHASENSE full range of semiconductors, catalytic,
electrochemical gas sensors, French HUMIREL/MEAS humidity sensors
and other international well-known companies authorized agents or
distributors, to provide customers with product information,
products Solutions, product selection, supply guarantee and
logistics services, etc.

