AM2301 / DHT21 digital temperature and humidity sensor is a digital signal containing a calibrated signal output of the temperature and humidity combined sensor . It uses dedicated digital module acquisition technology and temperature and humidity sensing technology to ensure high reliability and excellent long-term stability. Electrical sensor comprises a capacitance -type sensing the wet element, and a NTC for the temperature measuring element, and with a phase high-performance 8-bit microcontroller is connected. Therefore, the product has the advantages of excellent quality, ultra-fast response, strong anti-interference ability and high cost performance. Each AM2301/ DHT21 sensor is calibrated in an extremely accurate humidity calibration chamber. . Ultra-small size, extremely low power consumption, and signal transmission distances of up to 20 meters make it the best choice for even the most demanding applications.

Features

• Accurate,durable and high quality
• 4 pin package
• Ultra low power
• No additional components
• Excellent long-term stability
• All calibration,digital output
• Completely interchangeable
• Long distance signal transmission
• Relative humidity and temperature measurement

Specifications

• Power: DC 3.3-5.2V
• HUMI: 0~99.9% RH
• TEMP: -20 ~ 60℃
• Precision: ±3% RH, ±0.5 ℃
• Output: Digital (1 wire)
• Dimension: 60 x 27 x 14mm(L x W x H)

Package included

• 1 x DH21/AM2301 temperature and humidity sensor