The Am2301 dht21 Digital Temperature and Humidity Sensor is a combined temperature and humidity sensor with a calibrated digital signal output. We use dedicated digital module acquisition technology and temperature and humidity detection technology to ensure high reliability and excellent long-term stability. The sensor consists of a capacitive humidity sensing element and an ntk temperature measuring element and is connected to a high performance 8-bit single chip microcomputer. Therefore, the product has excellent quality, ultra-fast response, anti-interference function, cost-effectiveness and so on. Each am2301 / dht21 sensor is calibrated in a highly accurate humidity check room. The calibration factors are stored programmatically in otp memory and these calibration factors are recalled by the sensor during the processing of the detected signal. The single-line serial interface makes system integration easy and fast. Ultra-low volume, very low power consumption and signal transmission distances of over 20 meters make it ideal for all kinds of applications and the most demanding applications.
Specifications:
- Model: AM2301
- Power supply: 3.3-5V DC
- Output signal: digital signal via single-bus
- Sensing element: Polymer humidity capacitor
- Measuring range: humidity 0-100%RH; temperature -40~80Celsius
- Accuracy: humidity +-3%RH(Max +-5%RH); temperature <+-1Celsius
- Resolution or sensitivity: humidity 0.1%RH; temperature 0.1Celsius
- Repeatability: humidity +-1%RH; temperature +-0.2Celsius
- Humidity hysteresis: +-0.3%RH
- Long-term Stability: +-0.5%RH/year
- Sensing period: Average: 2s
- Dimensions size 59*27*13.5mm
Features:
- Full range temperature compensated
- Relative humidity and temperature measurement
- Calibrated digital signal
- Outstanding long-term stability
- Extra components not needed
- Long transmission distance
- Low power consumption
- 4 pins packaged and fully interchangeable
- The DHT21 measures
- Ultra low power
- Fast response
- Relative humidity and temperature measurement
- Full range temperature compensation
- Excellent long term stability
- Long transmission distance
- High accuracy
- No need of extra components
- Excellent long term stability
- Calibrated digital output
- 100% brand new and high quality
- Portable and durable, easy to carry, lightweight
- Every sensor tester will be packed respectively after strict testing.
- This sensor should work with the Sonoff TH 10A/16A Temperature And Humidity Monitoring WiFi Smart Switch.
Sensor type:
- Temperature: Resistance sensor
- Humidity: Capacitive sensor
- Power supply: DC3.1-5.5V
- Output signal: Single bus
- Shell material: ABS plastic
- Weight: 14 grams
Note: DHT21 has been renamed to am2301
- Measurement of relative humidity and temperature
- All calibration, digital output
- Excellent long-term stability
- No additional parts required
- Ultra-long-distance signal transmission distance
- Ultra low energy consumption
- 4 pin mounting
- Completely replace
Package Includes:
- 1 x DHT21 AM2301 Digital Temperature & Humidity Temperature Sensor
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