Makers choose the KY-015 Temperature and Humidity Sensor Module when they need a compact, cost-effective way to log environmental data. Specifically, the module uses a capacitive humidity sensor and a thermistor to measure the surrounding air. Therefore, it outputs a digital string of data that is easy for microcontrollers to read. Furthermore, every KY-015 sensor is strictly calibrated in a laboratory to ensure long-term stability. As a result, it is the perfect choice for home automation, weather stations, and greenhouse monitoring.
Additionally, this sensor uses a unique single-wire serial interface. Consequently, you only need one digital pin to receive both temperature and humidity readings. Because of this, the KY-015 Temperature and Humidity Sensor Module is highly efficient for projects where GPIO pins are limited.
Dual Monitoring: It measures both temperature and relative humidity simultaneously. Specifically, this provides a complete picture of your indoor environment.
Digital Calibrated Output: The module sends data as a 40-bit digital packet. Therefore, you receive reliable, interference-free readings over long distances.
Built-in Pull-up Resistor: This KY-015 Temperature and Humidity Sensor Module comes ready for use. Consequently, you dont need to hunt for external resistors to stabilize the data line.
Low Power Consumption: It draws very little current during measurement. As a result, it is ideal for battery-powered IoT devices and remote sensors.
Easy Integration: In addition, it works seamlessly with the popular DHT.h library. Specifically, this makes coding for Arduino, ESP32, and Raspberry Pi incredibly simple.
| Feature | Specification |
| Sensor Chip | DHT11 |
| Operating Voltage | 3.3V to 5.5V DC |
| Temperature Range | 0C to 50C (2C Accuracy) |
| Humidity Range | 20% to 90% RH (5% Accuracy) |
| Sampling Rate | 1 Hz (One reading every 12 seconds) |
| Dimensions | 18.5mm x 15mm |
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