DHT11 Temperature Humidity Sensor 5V 1mA
The DHT11 Temperature Humidity Sensor is a compact, digital output sensor that measures temperature and humidity with a single-wire data interface. This version comes without the module, which allows for direct interfacing with microcontrollers like Arduino and Raspberry Pi. The sensor is built using a resistive humidity measurement component and an NTC temperature sensor for accurate readings. It features a digital signal acquisition technique that provides quick responses and high reliability, making it an ideal choice for basic environmental monitoring.
While the DHT11 is less accurate compared to advanced sensors, it provides a good balance of price and performance, especially for DIY projects, home automation, and weather stations. It operates with a 3V to 5.5V power supply and is suitable for a range of applications that do not require highly precise measurements. The sensor’s small size, low power consumption, and ease of integration into microcontroller projects make it a popular choice among hobbyists and engineers.
Features:
- Digital signal output for easy interfacing.
- Compact design ideal for space-constrained applications.
- Measures both temperature and humidity.
- Low power consumption.
- Single-wire communication for simple system integration.
Specifications:
| Parameter | Conditions | Minimum | Typical | Maximum |
|---|---|---|---|---|
| Humidity Resolution: | 1% RH | 1% RH | 1% RH | |
| Humidity Repeatability: | ±1% RH | |||
| Humidity Accuracy: | 25°C | ±4%RH | ||
| Humidity Accuracy: | 0-50°C | ±5%RH | ||
| Interchangeability: | Fully Interchangeable | |||
| Measurement Range (Humidity): | 0°C | 30% RH | 90% RH | |
| 25°C | 20% RH | 20% RH | 90% RH | |
| 50°C | 20% RH | 20% RH | 80% RH | |
| Response Time (Seconds): | 1/e(63%)25°C, 1m/s Air | 6 S | 10 S | 15 S |
| Hysteresis: | ±1% RH | |||
| Long-Term Stability: | ±1% RH/year | |||
| Temperature Resolution: | 1°C | 1°C | 1°C | |
| Temperature Repeatability: | ±1°C | |||
| Temperature Accuracy: | ±1°C | ±2°C | ||
| Measurement Range (Temperature): | 0°C | 50°C | ||
| Response Time (Temperature): | 1/e(63%) | 6 S | 30 S |
Pinout:
| Pin | Function |
|---|---|
| 1 | VCC |
| 2 | Data |
| 3 | NC |
| 4 | GND |
Applications:
- Weather stations and climate monitoring.
- Home automation (smart thermostats, humidity control).
- HVAC systems (Heating, Ventilation, and Air Conditioning).
- Microcontroller-based projects (Arduino, Raspberry Pi).
- Industrial and agricultural monitoring.
Packages:
- 1x DHT11 Temperature Humidity Sensor 5V 1mA.