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DHT11 Humidity and Temperature Sensor Module (KY-015)

SKU: Y0FBCZRPU6
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4.1 (12 reviews)
The KY-015 DHT11 Humidity and Temperature Sensor Module is a compact digital sensor module designed to measure both ambient temperature and relative humidity with a single device. It is based on the popular DHT11 digital sensor, which integrates a calibrated humidity sensing element, an NTC temperature sensor, and an internal microcontroller to provide accurate digital measurements. The module communicates using...
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The KY-015 DHT11 Humidity and Temperature Sensor Module is a compact digital sensor module designed to measure both ambient temperature and relative humidity with a single device. It is based on the popular DHT11 digital sensor, which integrates a calibrated humidity sensing element, an NTC temperature sensor, and an internal microcontroller to provide accurate digital measurements.

The module communicates using a single-wire digital interface, making it easy to connect to Arduino, ESP32, STM32, Raspberry Pi Pico, and other microcontrollers with minimal wiring. Since the sensor outputs calibrated digital data, no external analog-to-digital conversion is required.

The KY-015 is widely used in weather stations, environmental monitoring, smart home automation, greenhouse monitoring, HVAC systems, IoT devices, and educational electronics projects.

Key Features

  • Measures both temperature and relative humidity
  • Based on the DHT11 digital sensor
  • Factory calibrated digital output
  • Single-wire communication interface
  • Simple three-pin connection
  • Stable and reliable performance
  • Low power consumption
  • Fast response time
  • Compact PCB module design
  • No external ADC required
  • Easy microcontroller interfacing
  • Compatible with Arduino, ESP32, STM32, and Raspberry Pi
  • Suitable for environmental monitoring
  • Ideal for educational and DIY electronics projects

Shipping & Returns

Orders placed before 3 PM IST will be shipped on the same day (excluding Sundays and Public holidays) through our shipping partners. In rare cases, the pickup may get delayed during Public holidays / Bandh / Environmental disturbances.

Specifications

Specifications:

Module Type: Temperature and Humidity Sensor Module
Model: KY-015
Sensor IC: DHT11
Measurement Parameters: Temperature and Relative Humidity
Operating Voltage: 3.3V to 5V DC
Operating Current: Typical 0.5mA (Measuring), 60µA (Standby)
Communication Interface: Single-Wire Digital Interface
Output Type: Digital Output
Temperature Measurement Range: 0°C to +50°C
Temperature Accuracy: ±2°C (Typical)
Humidity Measurement Range: 20% RH to 90% RH
Humidity Accuracy: ±5% RH (Typical)
Resolution: 1°C, 1% RH
Sampling Rate: 1 Sample Per Second (1Hz)
Response Time: Fast Response
Interface Pins: VCC, GND, S
Operating Temperature: 0°C to +50°C
Storage Temperature: -20°C to +60°C
PCB Dimensions: Approximately 24mm × 15mm
Mounting Type: Through-Hole Module
Compatibility: Arduino, ESP32, STM32, Raspberry Pi Pico, AVR, PIC

Additional Resources

DHT11.PDF

FAQ

1. What is the KY-015 DHT11 Sensor Module used for?

The KY-015 is used to measure ambient temperature and relative humidity in applications such as weather stations, smart home systems, greenhouses, HVAC control, and environmental monitoring.

2. How does the DHT11 communicate with a microcontroller?

The DHT11 uses a single-wire digital communication protocol, allowing both temperature and humidity data to be transmitted over a single data pin.

3. Can the KY-015 be connected directly to Arduino and ESP32 boards?

Yes, the module is fully compatible with Arduino, ESP32, STM32, Raspberry Pi Pico, and other microcontrollers that support the DHT11 communication protocol.

4. What is the measurement range of the DHT11 sensor?

The DHT11 measures temperatures from 0°C to 50°C and relative humidity from 20% RH to 90% RH.

5. Does the KY-015 require calibration before use?

No. The DHT11 sensor is factory calibrated and provides calibrated digital temperature and humidity readings without requiring user calibration.