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Product Overview
DHT11 digital temperature and humidity sensor is a temperature and humidity composite sensor with calibrated digital signal output. It applies special digital module acquisition technology and temperature and humidity sensing technology to ensure that the product has extremely high reliability and excellent long-term stability, low cost, relative humidity and temperature measurement, ultra-fast response, strong anti-interference ability, long signal transmission distance, digital signal output and accurate calibration. The sensor includes a resistance humidity sensor and an NTC thermometric element, and is connected with a high-performance 8-bit single chip microcomputer. It can be used for HVAC, dehumidifier, testing and testing equipment, consumer goods, automobiles, automatic control, data recorder, weather station, household appliances, humidity regulator, medical treatment, and other related humidity detection and control.
Product Parameters
Relative humidity
Resolution: 16bit
Repeatability: ± 1% RH
Accuracy: 25 ℃ ± 5%RH
Interchangeability: fully interchangeable
Response time: 1/e(63%)25℃ 6s
1 m/s air 6s
Hysteresis:<± 0.3%RH
Long-term stability:<± 0.5%RH/yr
Temperature
Resolution: 16bit
Repeatability: ± 1 ℃
Accuracy: 25 ℃ ± 2 ℃
Response time: 1/e(63%) 10s
Electrical characteristics
Power supply: DC 3.3~5.5V
Power supply current: measured 0.3mA standby 60μA
Sampling period: more than 2 seconds
Pin description
1. VDD power supply 3.3~5.5V DC
2. DATA serial DATA, single bus
3. NC empty feet
4. GND grounding, negative power supply
Digital output temperature and humidity sensor, temperature and humidity probe DHT11
-DHT series digital temperature and humidity sensor -Full range calibration, single line digital output; -Humidity measurement range: 20%~ 90%RH(0-50 ℃ temperature compensation); -Temperature measurement range: 0 ~ + 50℃; -Humidity measurement accuracy:±5.0%RH-Temperature measurement accuracy:± 2.0 ℃-Response Time:<5s; -Low power consumption
Features
ZMeasurement of relative humidity and temperature
ZFull range calibration, can be used interchangeably without re-calibration
ZUltra-fast response time
ZSingle-wire digital interface(The simplest system integration, low price)
ZUltra small size (...MM)
ZHigh Reliability
ZOptimized long-term stability
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