Temperature and Humidity Sensor
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  • AM2301
  • AM2301 temperature and humidity sensor
  • AM2301
  • AM2301 temperature and humidity sensor

Temperature and Humidity Sensor

No.AM2301
AM2301 Digital temp/humidity sensor with single-bus interface, factory-calibrated, low power, 20m range, fast response, and high stability.
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Description
The AM2301 is a digital temperature and humidity module that integrates a calibrated capacitive humidity sensor and a high-precision temperature measurement device. It features a single-bus interface for simplified communication, ultra-low power consumption, and a compact design. The sensor is factory-calibrated with coefficients stored in its microcontroller, ensuring high reliability and long-term stability. It is suitable for a wide range of applications due to its fast response, anti-interference capability, and transmission distance of up to 20 meters.


 Key Features

  • Digital Output: Single-bus interface for easy integration.
  • High Accuracy:Humidity: ±3% RH (at 25°C), 0.1% resolution.Temperature: ±0.3°C (typical), 0.1°C resolution.
  • Wide Operating Range:Humidity: 0–99.9% RH.Temperature: -40°C to 80°C.
  • Low Power Consumption:Sleep mode: 10–15 µA.Average: 300 µA (at 5V, 25°C).
  • Fully Interchangeable: No need for individual calibration.
  • Robust Performance:Fast response time (<6s for humidity, <10s for temperature).Excellent long-term stability (<0.5% RH/year drift).

Typical Application Scenarios

  • HVAC systems
  • Dehumidifiers and humidifiers
  • Automotive climate control
  • Medical equipment
  • Weather stations
  • Consumer electronics
  • Industrial automation and data loggers
  • Test and measurement devices

Technical Specifications

Category Specifications
Power Supply 3.3V–5.2V (recommended 5V)
Communication Single-bus protocol (1-wire), 5.1kΩ pull-up resistor required
Humidity Range 0–99.9% RH
Humidity Accuracy ±3% RH (at 25°C)
Temperature Range -40°C to 80°C
Temperature Accuracy ±0.3°C (typical), ±1°C (max)
Sampling Period ≥2 seconds (minimum interval between readings)
Response Time <6s (humidity, 63% step), <10s (temperature, 63% step)
Dimensions Ultra-small (exact size not specified in manual)
Cable Length ≤30m (with 5.1kΩ pull-up); ≤100cm for 3.3V supply
Note: Avoid exposure to condensation, chemicals, or extreme temperatures for optimal performance.

Packaging

  • 1 x AM2301(Default 1m, Optional: 3m, 5m, 10m, 20m etc)
  • AM2301
  • AM2301 temperature and humidity sensor

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