DHT11 Datasheet | OSEPP

Key Features

• Introduction DHT11 Temperature & Humidity Sensor features a temperature & humidity sensor complex with a calibrated digital signal output. By using the exclusive digital-signal-acquisition technique and temperature & humidity sensing technology, it ensures high reliability and excellent long-term stability. This sensor includes a resistive-type humidity measurement component and an NTC temperature measurement component, and connects to a highperformance 8-bit microcontroller, offering excellent quality, fast response, anti-interference ability and cost-effectiveness. Page | 2 Each DHT11 element is strictly calibrated in the laboratory that is extremely accurate on humidity calibration. The calibration coefficients are stored as programmes in the OTP memory, which are used by the sensor’s internal signal detecting process. The single-wire serial interface makes system integration quick and easy. Its small size, low power consumption and up-to-20 meter signal transmission making it the best choice for various applications, including those most demanding ones. The component is 4-pin single row pin package. It is convenient to connect and special packages can be provided according to users’ request.
• Technical Specifications: Overview: Item DHT11 Measurement Range 20-90%RH 0-50 ℃ Humidity Accuracy ±5％RH Temperature Accuracy ±2℃ Resolution 1 Package 4 Pin Single Row Page | 3 Detailed Specifications: Parameters Humidity Resolution Conditions Minimum 1%RH Repeatability Accuracy Interchangeability Measurement Range Response Time (Seconds) Hysteresis Long-Term Stability Temperature Resolution Repeatability Accuracy Measurement Range Response Time (Seconds) 25℃ 0-50℃ Fully Interchangeable 0℃ 30%RH 25℃ 20%RH 50℃ 20%RH 1/e(63%)25℃， 6 S 1m/s Air Typical 1/e(63%) 1℃ 8 Bit ±1℃ 0℃ 6S Typical 1%RH 8 Bit ±1%RH ±4%RH 10 S ±1%RH ±1%RH/year Maximum 1%RH ±5%RH 90%RH 90%RH 80%RH 15 S 1℃ 8 Bit ±1℃ 1℃ 8 Bit ±2℃ 50℃ 30 S Page | 4